Aluminium alloy+Fabric
True Wireless Stereo,DSP audio processing chip
Fast and stable charging through Type-c port
Two 3.5 wired series interfaces
Bluetooth Version:4.2
Working voltage:7.4V    Output power:100W
Transmission distance: 10m
Frequency: 20Hz ~ 18KHz
Signal noise ratio: 100dB
CTN G.W.: 11.8KG;CTN size: 77*45.5*24cm