set2: 1 x Bluetooth 5.0 Audio Transmitter/Receiver Adapter + 1 x Karaoke echo sound mixer With stable quality, portable, artistic, small and exquisite. Suitable for company, stage, home, KTV rooms, etc. Connect the front of amplifier to input and power control the host. Dual Microphone inputs, video input and sound output for video signal, volume can be adjusted individually. Reverberation delay function and audio inputs/outputs for left/right channel Volume frequency regulation. Volume frequency regulation. 1.This extremely portable, lightweight wireless audio transmitter & receiver is an Perfect wireless audio solution for a wide range of situations and uses 2.Transmitter mode: wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers 3.Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones 4.Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced Bluetooth technology and 3.5mm audio cable (included). Plug Type:US Plug,it applies to Canada, India, Japan, Mexico, Thailand, the United States, the Philippines and so on. Model: N-3 Working Voltage: 9V-12V Total Harmonic Distortion: Less than 0.5% @ 1KHz Item Size: 14 x 8.5 x 4cm / 5.5 x 3.3 x 1.6in 5.Broad Compatibility: With the included 3.5mm cable this Receiver Transmitter adapter can widely be used on your car,computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc. 6.Operation Range: Up to 15m (without any blocking objects) Colour: Black material: plastic/metal Package Contents: 1 x Bluetooth 5.0 Audio Transmitter/Receiver Adapter 1 x 3.5mm Aux Cable 1 x User Manual 1 x Karaoke echo sound mixer 1 x plug 1 x audio cable 1 x video cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of th