Esperanza Libero EH163K Headset Wireless Head-band Music Mini-USB Bluetooth Black

Battery operated: Yes | Width: 180 mm | On/off switch: Yes | USB connector: Mini-USB | Battery technology: Lithium Polymer (LiPo) | Wireless range: 10 m | Recommended usage: Music | Headset type: Binaural | Ear coupling: Circumaural | Rechargeable battery: Yes | Connectivity technology: Wireless | Bluetooth version: 3.0+HS | 3.5 mm connector: No | Operating keys: Multi-key | 2.5 mm connector: No | Driver unit: 4 cm | Headphone frequency: 20 - 20000 Hz | Depth: 80 mm | Wearing style: Head-band | Product colour: Black | Bluetooth: Yes | Foldable: Yes | Continuous audio playback time: 4 h | Talk time: 10 h | Microphone type: Not available | Weight: 168 g | USB connectivity: Yes | Impedance: 32 Ω | Bluetooth profiles: AVRCP | Height: 140 mm | Bluetooth profiles: HSP | Bluetooth profiles: HFP | Bluetooth profiles: A2DP | Audio output channels: 2.0 channels | Product type: Headset | Battery capacity: 300 mAh | Charging source: USB | Charging voltage: 5 V