Loud Bluetooth Speaker Wireless Waterproof Outdoor Stereo Bass Usb/Tf/Fm Radio Black
Bluetooth version: v4.2
Wireless transmission range: 10M
Audio performance to noise ratio: ≥ 90dB
Battery capacity: 1200mAh
Built in voltage: 3.7V
Normal volume: 3H ~ 4H
Horn specification: ï¿ 45mm * 2
Horn power: 4 Ω / 5W * 2
Frequency response: 120hz-20khz
Product size: 168x75.8x79.8mm
Unit weight: 405G (bare metal) + 105g (color box accessories)
Charging voltage: 5V / 500mA