IPX7 waterproof bluetooth speaker with extra bass function

• Material: ABS
• Bluetooth version:4.2
• Transmission distance:10 meters
• Working Voltage: 3.5-3.8 V
• Speaker unit: diameter 45mm, inner magnetic 20W=10Wx2
• S/N ratio:≥70dB
• Built-in rechargeable Battery:4400mAh
• Input: 5V / 1A
• Working time:6~7hours
• Dust&Waterproof:IPX7
• Size:220x100x43.5mm