Wireless Portable Stereo Speakers

90DB Wireless Stereo Speakers For Multi - Media Audio Classroom / Audio Laboratory Quick Detail: 1.Usage Mode:In hand,on the collar/upon the head(HT-EA240GII) 2.Transmitting Frequency:2402-2480MHz 3.Effective Range:about 20M 4.Freuency Response:50Hz-15KHz Hitouch Large Speaker with Wireless Mic built-in HT-EA240G is specially designed for the big classroom or meeting room. Specifications Microphone: Usage Mode: In hand,on the collar/upon the head(HT-EA240GII) Transmitting