Lenovo WD770-B LENOVO WIRELESS HEADSET W770 (DONGLE) User Manual

Lenovo (Beijing) Limited LENOVO WIRELESS HEADSET W770 (DONGLE) Users Manual

Users Manual

W770WirelessHeadsetW770WirelessHeadset User ManualUser ManualW770Wireless HeadsetProduct name: Lenovo Wireless Headset W770Product standard: Q/HDLCS103-2009Manufacturer: Lenovo (Beijing) LimitedAddress: No.6 Chuang Ye Road, Shangdi Information Industry Base, Haidian District, Beijing, ChinaZip Code: 100085Lenovo website: www.lenovo.comW770 Wireless Headset.indb 1 2011-12-6 14:24:19
W770 Wireless Headset User Manual― 1 ―I. PRODUCT INTRODUCTIONDear customers, Thank you for selecting high-quality electronic product offered by Lenovo. This headset is manufactured with internationally advanced 2.4 GHz wireless audio transmission technology. This technology is characterized by stable signal (easily avoiding the interference of other signals with high frequency hopping anti-interference technology), long transmission distance and Hi- stereo.This headset consists of one USB Dongle and one receiver (headset). Its in-built Lithium polymer battery of 380 mAh provides a standby time of 6 hours, allowing you enjoy the music and chat online freely.OS requirement: WIN XP, WIN 2000, WIN 7, VISTA, Apple MACCompatible players: MediaPlayer, RealPlayer, etc. W770 Wireless Headset.indb 1 2011-12-6 14:24:20
W770 Wireless Headset User Manual― 2 ―II. INTRODUCTION OF HEADSET CONNECTION1. First, connect the USB Dongle to the USB interface of the computer. The computer will automatically recognize the USB Dongle. After it prompts that the device installation is completed, the device can be used normally (with the computer providing tips for rst use).2. Turn on the headset. After it completes connection with the USB Dongle, the headset can be used normally.III. HEADSET BUTTONSOn/OffChargingIndicatorCharging PortToggle SwitchWorking StateIndicator1. On/Offa. Power On: By pressing this button for over 1 second in power off state, blue LED lamp is constantly on, and the headset is started.b. Power Off: By pressing this button for over 1 second and then releasing it in power on or playing state, blue LED lamp is off, and the headset is powered off. 2. Toggle switcha. Pause/Play: In playing state, press middle part of this button to pause, and press middle part of this button again to resume the playing.b. Previous/Next: Press this button and hold for a moment to play the previous/next song.c. Volume +/-: Toggle this button upwards/downwards to increase/decrease the volume.W770 Wireless Headset.indb 2 2011-12-6 14:24:20
W770 Wireless Headset User Manual― 3 ―IV. INDICATOR LAMP1. Red LED lampRed LED lamp is the charging indicator. It lights on when the device is charged, and is off when the charging completes (or low level lighting).2. Blue LED lampBlue LED lamp is the working state indicator.a. When power on, this lamp is on indicating the device works normally; b. This lamp is off when the device is powered off or the battery is out of power.V. MICROPHONEThe microphone is hidden multi-directional microphone, providing superior gaming and chatting experience.MicrophoneVI. CHARGING INSTRUCTIONSCharging portCharging cableW770 Wireless Headset.indb 3 2011-12-6 14:24:20
W770 Wireless Headset User Manual― 4 ―1. Connect 3.5 mm charging plug with the headset rst, and connect USB connector of the charging cable with USB port of the computer or USB port of dedicated charger. Red LED lamp is on and the device enters the charging state.2. When the charging is completed, red LED lamp is off. You could just disconnect the charging cable. Notes: ● This headset is equipped with inbuilt irremovable charging battery. Please do not remove the battery to avoid the damage to the headset.● The charging time of the headset battery for the rst time should be 12 - 24 hours to activate the best operating state of the battery. Later on, the charging time will be 2 - 3 hours (please do not charge the device for over 24 hours to avoid the damage to the service life of the battery).● This 3.5 mm plug can only be used for connecting the charging port of over W770, but cannot connect the audio port of the audio device such as PC.VII. WEARING INSTRUCTIONS1. Please distinguish the left and right side of the headset when wearing it: “L” on the bracket indicates the left side, while “R” indicates the right side.2. Both sides of the headset are equipped with collapsible headphones. The length can be adjusted accordingly to make you enjoy the music comfortably! The stretched length is 24±1 mm.W770 Wireless Headset.indb 4 2011-12-6 14:24:20
W770 Wireless Headset User Manual― 5 ―VIII. ROTATING EAR PAD90 degrees ofrotationIX. FAQS1. No sound can be hearda. Check whether the USB Dongle has been plugged in USB port of the computer, and the microphone has been powered on;b. Adjust the volume with the toggle switch on the headset;c. Close and reopen the multimedia player;d. Check the headset power and charge it if low;e. If the problem persists, please re-match it by following the matching instruction.(Matching instruction: Press and hold “On/Off” button for over 15 seconds when the headset is powered on, and blue LED lamp ashes quickly and beeps. At this point, the headset enters the searching state and the matching begins. Blue LED lamps will be on constantly when the matching is completed. The best matching distance is 20 cm - 50 cm.)2. Short receiving rangeCheck whether there are other devices at the same frequency beside USB Dongle, and move USB Dongle to an open place.3. During the use, you may hear sizzling sound in the headset or experience an interruption due to the interference from your surrounding wireless devices or screening of obstacles. Note: If the headset can not be powered on, the reason may be low power after long time with no use. In this case, please charge it rst.W770 Wireless Headset.indb 5 2011-12-6 14:24:20
W770 Wireless Headset User Manual― 6 ―X. PRODUCT PARAMETERHeadset:Drive unit ............................................................................................................... 2 x 40 mmFrequency response ........................................................................................20Hz ~ 20KHzImpedance ................................................................................................ 32Ω±15% @ 1kHzSensitivity (SPL) ...............................................................................103±3dB/1mW @ 1KHzSignal to noise ratio ........................................................................................................65dBWorking voltage ...............................................................................................................3.7VWorking current .............................................................................................................55mABattery capacity .........................................................................................................380mAhContinuous working time ................................................................................................... 6HCharging time ................................................................................................................. 2.5HInput power ...................................................................................................................20mWMaximum input power ..................................................................................................45mWNet weight of headset ..................................................................................................... 160gNet weight of USB Dongle .................................................................................................. 6gMicrophone:Frequency response ...................................................................................... 100Hz ~ 10kHzImpedance ..............................................................................................2.2kΩ±10% @ 1kHzSensitivity ................................................................................ -38±2dB @ 1kHz 0dB=1V/PASignal to noise ratio ........................................................................................................55dBUSB Dongle specication:Working voltage ..................................................................................................................5VWorking current .............................................................................................................55mATransmitting power ......................................................................................................+4dBMTransmitting range ........................................................................................................... 10MModulation mode .......................................................................................................... GFSKFrequency range ................................................................................. 2404MHz ~ 2476MHzInterface...........................................................................................................................USBW770 Wireless Headset.indb 6 2011-12-6 14:24:20
W770 Wireless Headset User Manual― 7 ―XI. PACKAGE CONTENTSW770WirelessHeadsetW770WirelessHeadset User ManualUser Manual❏ Wireless headset ❏ USB charging cable❏ USB Dongle ❏ Warranty and notice manual❏ User ManualHeadset model: W770 CMIIT ID: 2011DP5808USB Dongle model: WD770-B CMIIT ID: 2011DP5809XII. HEARING PROTECTIONSuggestion for preventing the hearing damage:1. When using the headset, too high volume may cause the hearing loss.2. Please adjust the volume as appropriate: adjust the volume to the lowest level, open the player, increase the volume gradually until you feel comfortable in hearing and denition is not distorted.3. If the dialog and other similar ambient noise can be heard without interference, the volume is appropriate.4. Adjust the volume to comfortable level and keep it. In case of the tinnitus, discomfort or sound distortion, please decrease the volume or stop the listening, and check your acoustic state.W770 Wireless Headset.indb 7 2011-12-6 14:24:21
W770 Wireless Headset User Manual― 8 ―XIII. SAFETY INSTRUCTIONPlease read all warnings and instructions carefully.1. Do not use this headset near the water source to prevent water from entering the headset or damaging the headset function.2. Install/use this headset according to the instructions of the manufacturer.3. Keep this headset away from re (such as aming candle).4. Do not install this headset near the heat source (including the heater, heat ventilating devices or other heat-producing devices).5. This headset can only be used with the accessories specied by the manufacturer.6. This headset must be repaired by the qualied personnel. Warning: Wireless USB Dongle will produce electromagnetic signal, so use it carefully in places where the heart pacemaker or related medical device is used.XIV. FCC NOTEThis equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: – Reorient or relocate the receiving antenna.– Increase the separation between the equipment and receiver.– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.– Consult the dealer or an experienced radio/TV technician for help.This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modications to this equipment. Such modications could void the user's authority to operate the equipment. W770 Wireless Headset.indb 8 2011-12-6 14:24:21

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