Description:Comfort: The headset is designed to fit the auricle of the human body, which is more secure and comfortable to wear, one button type and easy to operateWidely used: The headsets deep ba response is suitable for listening to music, watching movies and online chat, so that you can answer or reject calls anytime and anywhere.Wirele: The headset uses bluetooth-compatible 5.1 technology to show a better game experience without affecting the operation.Easy to use: With headset, you can fully control music, volume, call and voice aistant settings, supports stereo music playback and phone calls.Good compatibility: The wirele headphone support all audio devices with bluetooth-compatibility function, such as mobile phones, tablets, laptops, computers, etc. Specification:Bluetooth-compatibility: 5.1.Connection technology: wirele.Driver diameter: 40mm.Transmiion distance: approx. 10M / 33ft.Speaker sensitivity: 115dB to 33dB.Frequency range: 20Hz-20KHz.Speaker impedance: 32 Ω± 15%.Microphone sensitivity: - 42 to 33dB.Battery capacity: 400mah.Talk time: about 15-20 hours.Music time: about 15-20 hours.Standby time: about 100 hours.Charging time: about 3 hours.Working time: about 20 hours (70% volume).Color: Black, Red, Pink. Note:There might be a bit color distortions due to different computer resolutions.There might be a slight errors due to different hand measurement. Package Includes:1 Piece Headphone(with 1 Piece Audio Cable, 1 Piece USB Charging Cable, 1 Piece Manual).