Esperanza Libero Headset Head-band Grey,White

Product type: Headset | Warnings: Do not disassemble or modify the product yourself. | Warnings: The product contains batteries which must be disposed of correctly. | Warnings: Read the user manual before use. | Bluetooth: Yes | Bluetooth version: 3.0 | Microphone sensitivity: -42 dB | Wireless range: 10 m | Connectivity technology: Wireless | Driver unit: 4 cm | Headset type: Binaural | Headphone frequency: 20 - 20000 Hz | Wearing style: Head-band | Headphone frequency: 30 - 16000 Hz | Battery capacity: 300 mAh | Bluetooth profiles: AVRCP | Battery technology: Lithium Polymer (LiPo) | Bluetooth profiles: A2DP | Bluetooth profiles: HFP | Bluetooth profiles: HSP | Talk time: 10 h | Continuous audio playback time: 4 h | Battery recharge time: 3 h