1. Material: plastic + silicone jacket
2. IPX4 waterproof
3. Built-in 350mAh battery
4. Support card reading to play music
5. Built-in MIC, you can answer calls
6. With diaphragm, enhance bass effect
7. Power supply: built-in lithium battery, power: 3W
8. Bluetooth solution: 4.2
9. Audio input: wireless + wired audio input
10. Connection distance: Barrier-free 20 meters
11. Playing time: about 5 hours