Esperanza EH220 Bluetooth headphones Headband, Black

Bluetooth version: 5.0 | Bluetooth profiles: HSP | Wearing style: Head-band | Wireless range: 10 m | Headphone frequency: 20 - 20000 Hz | Connectivity technology: Wireless | Headphone sensitivity: 105 dB | Battery capacity: 200 mAh | Impedance: 32 Ω | Headset type: Binaural | Power requirements: 5V DC | Bluetooth profiles: HFP | Battery recharge time: 2 h | Continuous audio playback time: 5 h | Bluetooth profiles: AVRCP | Bluetooth profiles: A2DP | Battery technology: Lithium Polymer (LiPo) | Bluetooth: Yes | Driver unit: 4 cm | Microphone sensitivity: -42 dB | Product colour: Black | Talk time: 7 h | Frequency response: 30-16000 Hz