5.0 Neckband speaker for home use with SIRI function

• Material: ABS
• Bluetooth version:5.0
• Transmission distance:10 meters
• Working Voltage: 3.3-4.2 V
• Speaker unit: diameter 36mm, inner magnetic 6W=3Wx2
• S/N ratio:≥75dB
• Built-in rechargeable Battery: polymer 3.7V/800mAh
• Input: 5V / 0.5A
• Working time:8~11 hours under 50% volume
• Size:245*205*44.5mm 
• Weight:290g±10