1. Uses the latest Bluetooth chipset v5.3, more compatible and energy-efficient; 2. Ultra-portable design, ideal for meetings and camping; 3. Dual wireless karaoke, enjoy a KTV-like music experience; 4. 4-inch speakers with high power deliver an immersive audio experience; 5. Accompaniment and reverb with dual volume controls, making operation simpler Product model: S882 Bluetooth version: 5.3 Speaker battery capacity: 3.7V/3000mAh (dual MOS) Microphone battery capacity: 3.7V/600 mAh (single MOS) Driver: 105mm, 3 2 Power: 100W Effective range: 10 meters Playback time: Speaker lasts 8-10 hours, Microphone lasts 2-4 hours Charging time: Speaker takes 2-3 hours, Microphone takes 2-3 hours Frequency response range: 60 Hz - 20 kHz Main functions: Bluetooth, TF card/slide playback, talk mode, KTV Voice options: Original voice, male voice, female voice, child voice, magical voice Input/output: DC 5V-1A Product size: Dimensions without packaging (mm): 168 x139 x171 Weight: 1.39KG Color: Black Material: Plastic Package contents: 1 * Bluetooth speaker 1 * Type-C cable 2 * Microphones Only the above package contents included; other products are not included. Note: Light reflection and different screens may cause the color in the image to slightly differ from the actual item. The allowed measurement error is +/- 1-3cm.