1. Bluetooth 5.3 Chipset
2. Bluetooth Connection Supports Automatic Time Calibration, Can Be Used as an Electronic Watch
3. Sweatproof Design, Stylish and Comfortable to Wear
4. Built-in High-Definition Speaker, Supports Card Insertion or Wireless Bluetooth Playback
5. Supports MP3 Player Functionality
6. Charging Time: Approximately 1 Hour
7. Battery Capacity: 200mAh
8. Speaker Unit: 20mm
2. Bluetooth Connection Supports Automatic Time Calibration, Can Be Used as an Electronic Watch
3. Sweatproof Design, Stylish and Comfortable to Wear
4. Built-in High-Definition Speaker, Supports Card Insertion or Wireless Bluetooth Playback
5. Supports MP3 Player Functionality
6. Charging Time: Approximately 1 Hour
7. Battery Capacity: 200mAh
8. Speaker Unit: 20mm