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 easierProduct model: S882Bluetooth version: 5.3Speaker battery capacity: 3.7V/3000mAh (dual MOS)Microphone battery capacity: 3.7V/600 mAh (single MOS)Horn: 105mm, 3 Ω 2Power: 100W Effective distance: 10 metersPlayback duration: Speaker equal 8-10H, Microphone 2-4HCharging time: Speaker equal 2-3H, Microphone equal 2-3HResponse frequency range: 60 Hz -20 kHzMain functions: Bluetooth, TF card/disc playback, call mode, KTVChange of voice: original voice, male voice, female voice, doll voice, magic voiceInput/output: DC 5V-1AProduct size:Bare metal size (mm): 168 x139 x171Weight: 1.39KGColour:WhiteMaterial:plasticPackage Contents:1 * Bluetooth Speaker1 * Type-c Cable2 * MicrophonesOnly 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.High Power Karaoke Bluetooth Speaker Portable 360 Stereo Surround Wireless Subwoofer with Dual Micr szsh28