무선마이크

wireless microphone system with echo/treble/bass the wireless karaoke microphone set has echo, treble, bass control button, so you can choose different sound effects according to different songs. this wireless microphone system has bluetooth function, connect via bluetooth( bietrun 09) to play your favorite music.this wireless microphone has 30 channels, each 15, you can switch to the channel that do not have interference. perfect for karaoke, speech, meeting, conference, indoor or outdoor. bluetooth wireless karaoke microphone system built-in high sensitivity professional dynamic microphone, transmission distance upgrade to 98ft (30m), bluetooth 32ft(10m) ◆signal stability◆no delay◆no radiation◆anti-howling◆anti-jamming ◆constant frequency◆distortion 0.2%◆15 uhf adjustable channels. ◆only applicable to input devices with mic interface, 6.35mm (1/4) or 3.5mm(1/8), not applicable to aux / line in jack. 1200mah battery and display：the receiver of this wireless microphone set built