Shiyu Wireless earbuds

Specification: Product material ABS Bluetooth Version 5.0 Support profiles Headset, Handsfree, A2DP, AVRCP Operation range 10m Talk time Up to 4 hours in normal volume Music time Up to 4hours in normal volume Charging DC 5V 3500MA Frequency range 2.401-2.480GHz Frequency response 20HZ-20KHZ Distortion ≤1% Microphone sensibility -42db Working voltage 3.0V-4.2V Working temperature -10℃~+70℃ SNR(Signal-Noise Ratio) ≥90dB Battery built-in headset 55mAh High performance lithium polymer battery Battery built-in power bank 500mAh High performance lithium polymer battery Packing List: 1*breathing light touch earphone 1*charging cable 2*ear cap (set) 1*carton