Features: 1. Integrated BT chip offers fast speed stable connection allows transmission of 10 m without obstacle. 2. Compatible with mainstream devices suitable for multi-platform multi-system and major brand mobile phones. 3. Effectively block external noise and real-time audio calibration can maintain a high-quality listening experience. 4. Rechargeable battery. Long battery life can provide full-featured wireless playback. Perfect for exercise running sports and games. Notice: Actual color may be slightly different from the image due to different display and light effect. Please allow 1-3cm deviation due to manual measurement. Using time: 12hours(max) Transmission distance: 10-15 meters Vocalization principle: Dynamic Active noise cancellation: Yes Volume Control: Yes Wireless Type: Bluetooth Ear cushions: Memory Foam With microphone: Yes Charging method: CABLE Size: 20*19cm includes: 1 x Headset 1 x Charging Cable