Specifications:

• Bluetooth version: 3.0 + EDR
• Receiving distance: Up to 10~15m
• Louder Speaker Unit: 4Ω,3W(RMS),45MM
• Distortion Factor: ≤1.0%
• Sensitivity: ≥75db
• Frequency Response: 100Hz-18kHz
• Built-in Battery: 3.7V, 600mAh
• Power supply: DC 5.0V
• Charging time: 2-3 Hours
• Playback time: 5~6 Hours (medium volume)
• Material: ABS
• Color: Black, White, Blue, Green, Red, Yellow or customized

Advantage:
1. Support bluetooth, hands-free call function, can adjust the volume level.
2. With big sucker, can stick to any smooth surface, such as smartphone, computer, glass, door, window, etc.
3. Portable, suitable for outdoors sports, such as climbing, riding, hiking, camping, barbecue, etc.
4. Waterproof, can be used in bathroom.