Efficiency Headset type: Stereo Working time: Up to 9 hours Range: 10 m Product type: Headset Application: Calls/Music/Sports/Everyday Wearing style: On-ear Product color: Red IP protection class: IP68 Water resistance time: 240 min Ports and interfaces Connection method: Wireless Bluetooth: Yes Bluetooth profiles: HFP Bluetooth version: 5.2 Battery Fast charging: Yes Safety warning Warnings Keep away from children. Do not use near sources of heat or fire. Check the condition of the batteries regularly to prevent leakage. Headphones Headphone construction: On-ear