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

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