Havit E553BT Freego Pro Open Ear Air Conduction Headphones, green

Bluetooth: Yes | Volume control: Button | Control type: Buttons | Connectivity technology: Wireless | Headphone frequency: 20 - 20000 Hz | Weight: 23.1 g | Wearing style: Head-band | Width: 105 mm | Height: 57.3 mm | Battery capacity: 110 mAh | Product colour: Black | Headset type: Binaural | Recommended usage: Music / calls | Ear coupling: Air conduction | Product colour: Green | Battery recharge time: 2 h | Talk time: 9,5 h | Length: 140 mm | Bluetooth version: 5.3 | Product type: Headset | USB charging: Yes | Warnings: Keep away from children. | Warnings: Regularly check the condition of the batteries to prevent leaks. | Continuous audio playback time: 16,5 h | Package contents: Headphones | Driver diameter: 15 mm | USB Type-C ports quantity: 1 | Input voltage (earpieces): 5 V | Bluetooth range: 10 m | Microphone type: Built-in | Warnings: Do not use near sources of heat or flame.