User Manual

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EXTW37_TWS Bluetooth headphone user guide

【No.：V1.0】

Thanks for choosing the first and only EXTW37 Bluetooth True Wireless

headphone. Please charge the headset and read the manual carefully before using.

1.Product description and features.

1.1 Appearance



① MIC

② Micro USB：DC5V charge port

③ On/off button，indicator light: single press to turn on, and press 2 seconds

to enter paring, press 3 seconds to turn off.

1.2 Feature：

➢ TWS two channel High Precision Audio (HPA) wireless Bluetooth headphone

➢

Easy to operate with single button design.

➢ Large battery capacity, long time usage.

➢ HPA speaker driver, bass sound, tenor clear, high pitched loud and clear.

➢ Saves power intelligently: Turns off automatically after 10 minutes after

no connection.

P.1

2、How to use P.2

2.1 General operation:

Function

Instruction

Indicator

status

Beep Sound

On/off/pair button

Summary of content (5 pages)

PAGE 1
EXTW37_TWS Bluetooth headphone user guide 【No.：V1.0】 Thanks for choosing the first and only EXTW37 Bluetooth True Wireless headphone. Please charge the headset and read the manual carefully before using. 1.Product description and features. 1.1 Appearance On/off/pair button ① MIC ② Micro USB：DC5V charge port ③ On/off button，indicator light: single press to turn on, and press 2 seconds to enter paring, press 3 seconds to turn off. 1.
PAGE 2
Single press Turn ON button both Left and right, headphone get Blue light Yes flash fast paired automatically Enter Red and blue pairing press mode button for 2 seconds to enter Alternately Yes flash When both sides are turned on, TWS function left and right channel will connect by wireless Pairing Search Bluetooth devices on your Blue light phone, click’EXTW37’to pair flash slowly Play/Pause Press to play，repress to End calls When calls coming, press Blue light flash slowly pause(bo
PAGE 3
.1.5. R and L channel will work together, and when open next time, no need R and L channel pairing operation. (If first operation failed, please retry according to above steps) 3.2.Headphone and phone pairing 3.2.1 Press R channel for 2 seconds to enter pairing mode, red and blue light will alternately flash with beep sound. 3.2.2 Open the Bluetooth function on your phone/pad, search and and waiting for ‘EXTW37’ pairing name. 3.2.3 Click‘EXTW37’to pair.
PAGE 4
6、Product specification 6.1 Wireless Transmission Parameter Bluetooth Version Bluetooth profiles Audio Decode Bluetooth Range Communication Specification V4.0+EDR（True Wireless（TWS）CSR64215 Bluetooth module） A2DP，AVRCP，HFP，HSP Support SBC，MP3，AAC，APTX-LL audio format (Latency ：＜40ms） About 10m（without obstacles） Wireless output Class2：+4dBm（-6 ～+4dBm), Wireless band ISM band：2.402-2.480GHz 6.2 Battery Parameter Specification Battery Type Lithium polymer battery Capacity 3.7v ===500mAh，1.
PAGE 5
Consumption 15mA＜ I ＜22mA； Charge port Micro USB，DC5V Headphone Size 112.5 x87.5 x37mm Product weight ≈122.5 g Material ABS 7、FAQ Problem Description Can not connected Solutions 1. If meet cannot search the device or cannot connect, please make sure the Bluetooth headphone is in pairing mode, 2. If cannot re-search, re-start the phone or computer and retry. 3.If too many Bluetooth devices are around and hardly search, please turn off the other bluetooth devices. 4.