1.-K2 Karaoke Companion adopts the latest Bluetooth 5.3 technology and Karaoke Mixer System, which can upgrade traditional wired speakers to wireless karaoke speakers. It has a built-in -level sound card to beautify the sound effects and intelligently improve the sound quality, so that you can sing a good voice and and make your voice more realistic and beautiful. 2.It has 6 built-in sound effects, supporting professional mode/KTV mode/original sound/male to female/female to male/ sound mode, you can freely switch different sound effects according to different occasions. 3.High-quality Moving-Coil Microphone, engineered acoustic technology, anti-howling, noise-free, and anti-interference. 4.RGB Colorful LED Lights, the gradient effect can enhance the atmosphere, and the dazzling lighting effects realize the wonderful interaction between light and music, creating a cooler karaoke music culture. 5.Compatible with multiple systems devices, For K-Songs/live broadcast/listen to songs,Compatible with mobile phones, tablet,computers, laptops, Car Kit,Smart TV, Projector,MP3,MP4 and supports major karaoke apps and live singing software. Support use in Cars, allowing the car speakers to be upgraded to the karaoke speaker system to sing with wireless microphones, increasing driving pleasure and making the journey no longer lonely.(Note:The Car needs to have a 3.5MM AUX audio input interface) Product Name: Wireless Karaoke Companion Set Audio Interface: 3.5mm AUX output/3.5mm AUX input/Type-C input Bluetooth Version: V5.3 Microphone Type: Dynamic Microphone Transmission Distance: 10 meters without obstacles Battery Capacity: Amplifier Host 300mAh/Microphone 400mAh Type-C Interface: Charging And Audio Input Audio Frequency Response: 20Hz-17.5KHz Compatible Devices: mobile phones, computers, tablets, , projectors, smart , wired speakers, car speakers and other audio equipment Support Protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Color: Black Material: plastic Package Contents: 2 x Microphones 1 x Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.