IPX5 waterproof level 400mAh mini charge case/Double digital display for earphones Earbuds can be easily switched independently HIFI sound quality with professional tuning Auto power on/off/reconnect/pair ANC Noise cancelation Wireless charging mode Transparent mode Low latency mode In ear inspection Materials is ABS and PC Wireless solution is Lanxun 5376A Wireless version is BT 5.0 Wireless support agreement AVRCP HSP HFP A2DP Transmission distance is10m-15m Frequency Response is 2.402GHz-2.480GHz Battery capacity is 40mAh 400mAh with protective IC board The case of charging times for earbuds is 4 times Driver Element is Composite membrane speaker �?6mm Frequency Response is 20Hz-20kHz Touch Control mode Sensitivity 102dB�±3 Microphone MEMS microphones 3722 Frequency 2.4GHz Class 2 Input 3.7V Impedance 16�©�±15% Max power dissipation 12mA Playing time 3-4h Standby time 150h Charging time 1h Color Black and support customized
