Havit E553BT Freego Pro Open Ear Air Conduction Headphones, green

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