Model Number: D-422. Bluetooth Version: V5.3. Support profiles: HSP,HFP,AVRCP,A2DP. BT frequency: 2.402 GHz 2.480GHz. Sound Mode: Stereo. Charging time:about 2 hours. Music time: About 10 hours. Talk/Playing time: About 10 hours. Operating Distance: about 20 meters. Power Source: Lion Battery 400mAh. Aux line in: 3.5mm socket. With FM radio: 87.5 108.0MHz. TF card input: Support 256M-32G. Output: 22mW*2. Speaker Impedance: 32 ohms 40mm. Accessory : usb line, aux cable,User manual
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