<ul><li>Bluetooth version: V5.0</li><li>Effective range: 10M</li><li>Frequency response: 20Hz-20kHz</li><li>Distortion: 0.10%</li><li>Speaker size: 40mm</li><li>Support A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5</li><li>Voltage: 3.7V DC (400mAh rechargeable battery)</li><li>Talk time: 8 hours</li><li>Music time: 6 hours</li><li>Standby time: 120 hours</li><li>Charging time: 2 hours</li><li>Wireless Headset with colorful light - LED flash light</li><li>Bass quality, HD voice</li><li>TF Card</li></ul>