HIFI Stereo Bluetooth Earphones And Support SD Card With Mic
$44.00
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Item specifics : Brand Name :PHONEXU Version V4.0 Frequency 2.40GHz-2.48GHz Power ≤ 4 dBm, class 2 Effective range 10M Sensitivity -84dBm / 0.1% BER Frequency response 20 Hz - 20 KHz S/N rate 70 dB Distortion 0.10% Speaker size 40mm support A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 Voltage 3.7VDC (built-in 400MAH rechargeable battery) talking time 8~9 hour standby time 250hour charge time 2-2.5 hour current 40 mA operate temperature -4 ~ +131°F(-20 ~ +55°C)
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