●60 m operating range: you can move freely in the room or elsewhere. e.g. home karaoke, church, wedding, conference, party and small stage performance. ●Mic 6.35/3.5 jack: the wireless microphone is compatible amplifier, PA system, karaoke machine, active speaker, party speaker etc. (not compatible with phones, computers and tablets) ●Crystal clear sound: built-in 30 mm large dynamic circle, reduces background noise and high fidelity to provide you with clear sound quality. The frequency response of the microphone - 50Hz-16Hz ●Plug and paly: the connection takes only three steps. The dynamic microphone pairs automatically and quickly with the receiver when switched on. 5 adjustable channels will avoid radio interference, up to 5 sets can be used at the same time. (Can be used by 10 people on stage at the same time) ●Reliable performance: the receiver is a built-in 1500 mAh lithium polymer battery, which can be used for up to 6-8 hours. USB Type-C interface for ultra-fast charging. Please note: 2 AA batteries are required for each microphone (not included)