Brand Nokia, Capacity “Charging box: 320mAh Headpone: 37mAh*2”, Impedance 32Ω±15%, Transmission frequency 2.402 GHz to 2.480 GHz, Operating time “Up to 7hrs (music playback via A2DPwith 70% of the volume) with rechargeable batteries of the earphones 25 hrs with rechargeable battery of the charging case”, Support agreement HSP/HFP/AVRCP/A2DP, Decoder SBC, Model E3103, Material ABS+PC, Charging time approx. 2 hours, Frequency range 20Hz-20KHz, bluetooth version V5.1.
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Banggood
Warehouse in China.
Link: Nokia E3103 Bluetooth V5.1 Earphones
Price: $-3
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