Selling point: 1. Adopting the latest Bluetooth chip v5.3, more compatible and energy-saving; 2. Ultra portable design, designed for gatherings and camping; 3. Dual wireless karaoke, enjoying a ktv like karaoke experience; 4. 4 inch large high-power speakers bring immersive music enjoyment; 5. Accompaniment and reverb dual volume display, making control easier 360 Stereo Sound The built-in super-power wireless Bluetooth audio system can produce strong bass and crisp treble, and the PA system can achieve all-round stereo reproduction. And has a "vocal elimination" function, which allows you to freely remove the vocals and switch the vocal accompaniment, automatically weakening the original singing. Let you enjoy your own music time with just one click. 4-8 Hours of playtime. Voice changer mode. Reverberation,. Vocals freely removed. Premium sound quality. Multiple connection methods 6.3" Smaller size with powerful PA system. Comes with 2 Wireless Microphones. Separate controls are provided for sound effects, volume and switch settings. Product model: S882 Bluetooth version: 5.3 Speaker battery capacity: 3.7V/3000mAh (dual MOS) Microphone battery capacity: 3.7V/600 mAh (single MOS) Horn: 105mm, 3 2 Power: 100W Effective distance: 10 meters Playback duration: Speaker 8-10H, microphoneGreater than 2-4H Charging time: Speaker 2-3H, microphone 2-3H Response frequency range: 60 Hz -20 kHz Main functions: Bluetooth, TF card/disc playback, call mode, KTV Change of voice: original voice, male voice, female voice, doll voice, magic voice Input/output: DC 5V-1A Product size: Bare metal size (mm): 168 x 139 x 171 Weight: 1.39KG color:White material: plastic You can click the TONE button on the speaker or the EFF button on the microphone to switch between 5 sound effects that will add more joy to your . Sound effect button: switch between original sound, male sound, female sound, baby sound, magic sound Multifunctional Connection Our microphone speaker can not music via bluetooth connection, but also support USB/TF card and Aux. You can put them all into a USB or TF card, so you can plug them into the port and play your favorite music. And use an auxiliary cable to connect to a TV or other device that doesn't have a bluetooth mode and play your favorite music. Package Contents: 1 x Karaoke Bluetooth Speaker 2 x Microphone 1 x USB Cable 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.