Esperanza EH186K headphones/headset Wireless In-ear Sports Bluetooth Black, Red

Recommended usage: Sports | Battery voltage: 5 V | Buttons quantity: 3 | Wearing style: In-ear | Headset type: Binaural | USB charger included: Yes | Frame material: Metal | Extension cable length: 15 m | Control unit type: In-line control unit | Product colour: Black | Number of batteries supported: 1 | Bluetooth profiles: HFP | Bluetooth version: 4.2 | Connectivity technology: Wireless | Bluetooth profiles: AVRCP | Bluetooth: Yes | USB connectivity: Yes | User guide: Yes | Rechargeable battery: Yes | Cable length: 60 m | AC adapter included: Yes | Ear coupling: Circumaural | Battery capacity: 60 mAh | Headphone frequency: 280 - 16000 Hz | Continuous audio playback time: 3.5 h | Battery technology: Lithium-Ion (Li-Ion) | Bluetooth profiles: HSP | Volume control: Buttons | Battery operated: Yes | Weight: 20 g | Product colour: Red | Battery type: Built-in battery | Standby time: 4.5 h | Product type: Headset | Bluetooth profiles: A2DP | USB cable length: 1 m | Microphone noise-canceling: Yes