... with advanced wireless technology , make you get rid off wired amplifier from now on, can enjoy the happiness of the ... .Features: 1.Multifunctional digital amplifier all in one with entertainment, microphone, amplify, and FM, loudspeaker.2.Audio in function, is ... X 88mm Optional accessories: KM-V1 Device 1set Headset Microphone 1pcBattery Charger 1pc Aux in Cable 1pcCharger Cable 1pc Specification ...