Wireless sports Bluetooth headset $ 11.47 Bluetooth pairing name: T12 Support Bluetooth protocol: A2DP/AVRCP/AVDTP/AVCTP/HFP/GAVDP Bluetooth version: 5.0 Transmission distance: 10 meters (barrier-free transmission) Waterproof level: None (not waterproof) Play/talk time: 5 hours Standby time: 20 hours Headphone charging time: 1 hour Headphone material: ABS Headphone parameters Battery: 40mAh Charging interface: charging compartment Charging current: 5mA Low battery prompt: Yes (prompt when the voltage is lower than 3.V) Button function control mode: touch Power on: Take out the charging compartment and automatically power on (or long press for 3 seconds) Shut down: put in the charging compartment (or press and hold for 5 seconds) Play/pause: Touch the left/right ear once connected Previous song: Double-click the right ear Next song: Double-click the left ear Increase volume: triple click left ear Volume down: triple click on the right ear Voice assistant: long press 1.5S Switch between Chinese and English: None (English only) Charging box parameters Charging input voltage and current: 5V/0.5A Output voltage/maximum discharge current: 5V/1A