Vention OpenBeat Wireless Open-Back BT 5.4 Headphones, Black

Efficiency Wearing style: In-ear Application: Calls/Music/Sports/Everyday Product type: Headphones Security features: Waterproof Headset type: Stereo Product color: Black Housing material: Plastic Package contents Additional equipment: bow Cables: USB Type-C to USB Type-A Charging case: Yes Ports and interfaces Wireless router range: 10 m Frequency response (music mode): 50 - 16000 Hz Bluetooth version: 5.4 Bluetooth profiles: HSP Connection method: Wireless Bluetooth: Yes Battery Battery voltage: 5V Fast charging: Yes Battery capacity: 40 mAh Microphone Microphone type: Built-in microphone Safety warning Warnings Check the condition of the batteries regularly to prevent leakage. Keep away from children. Do not use near sources of heat or fire. Headphones Headphone sensitivity: 96 dB