Havit E553BT – Open Ear Air Conduction Headphones, black

Height: 57.3 mm Width: 105 mm Weight: 23.1 g Length: 140 mm Recommended usage: Music / calls Product type: Headset Product colour: Black Control type: Buttons Volume control: Button Wearing style: Head-band Headset type: Binaural Package contents: Headphones USB Type-C ports quantity: 1 Bluetooth: Yes Bluetooth range: 10 m Bluetooth version: 5.3 Connectivity technology: Wireless Battery capacity: 110 mAh Battery recharge time: 2 h Talk time: 9,5 h Continuous audio playback time: 16,5 h Input voltage (earpieces): 5 V USB charging: Yes Microphone type: Built-in Warnings: Keep away from children. Driver diameter: 15 mm Ear coupling: Air conduction Headphone frequency: 20 - 20000 Hz