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

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