M8 Simple Fashion Transparent Bluetooth Speaker Subwoofer with Ambient Light Features 1. Using Bluetooth 5.1 technology, it has faster transmission, lower power consumption, stronger anti-interference ability, simple connection and free playback. 2. Compact model, light luxury and retro style, more refreshing home furnishing, design aesthetics integrated into life with sound, bringing you a different sound quality experience. 3. Built-in 2000mAh large-capacity lithium battery, which can last for 6 hours of playback and has long-lasting battery life. 4. Stereo acoustics, the sound is wider and farther, HiFi sound quality is superior, 48mm full-range unit structure, you can enjoy an immersive audio-visual feast. Specifications: 1. Bluetooth version: V5.1 2. Effective distance: 10m 3. Output power: 8W 4. Frequency response range: 120Hz-18kHz 5. Signal-to-noise ratio: greater than or equal to 80dB 6. Battery capacity: 2000mAh 7. Usage time: 4-6 hours 8. Charging time: 2-3 hours 9. Cabinet material: ABS 10. Product size: 220 x 80 x 138 MM 11. Product weight: 890G Package list: Bluetooth speaker x 1 USB charging cable x 1 Audio cable x 1 User Manual x 1