A6S In-Ear TWS Wireless Bluetooth Earbuds With Mic Black

OverviewMaterial: ABS Bluetooth Version: V5.0 BT Distance: 10m Charging box charging time: 2 hours Headphone charging time: 1 hours Headphone standby time: 80 hours Music time: 3 hours Talking time: 4 hours BT protocol: HFP/A2DP/HSP/AVRCP Earphone-battery: Polymer Lithium-Battery 3.7V 45mAh Charging-box-battery: Polymer Lithium-Battery 3.7V 280mAh Working voltage: 3.2-4.2V Charging voltage: DC5V Frequency: 2.4-2.48Gigahertz Horn impedance: 32Ω Horn bandwidth: 20-20KHz Horn sensitivity: 105dB±3dB S.P.L at 1KHz Microphone sensitivity: -42+/-2db Function: Boot, Shut down, Boot back, Play/Pause, Switch songs, Volume addition and subtraction, Call answering, Call up, Call rejection, Redial and Start voice assistant