... /SD/Handle Trolley speaker with strap Trolley speakr with headset Portable speaker with strap Guitar amplifier With USB/SD/strap/headset/Handle 12V 10 inch,portable ... :1A(MAX)Speaker Box Material :private model, aluminium alloy With a headset,black straps,USB,SD Each one can be ... outdoor for 2.6 hours.With external battery interface Tube Guitar amplifier With USB/SD/strap/headset/Handle 12V 10 inch, ...