Transparent Bluetooth Speaker With RGB Cool Lighting Effect Card Insertable Large Speaker Stereo Sound Effect Bluetooth Speaker Features: Cool lighting effects: equipped with intelligent lighting effects that can change with music, colorful ambient lighting effects, bringing a unique visual experience 15W two speaker: Full frequency 15W speaker with transparent cavity, high resolution, high transmission speed audio codec, bringing better sound quality Stable transmission: Bluetooth 5.2 high-speed transmission, fast and stable transmission speed, supports card insertion and use, suitable for multiple scenarios Long battery life: Equipped with a built-in 650mAh large capacity battery, the compact body has unimaginable battery life, with a playback times of about 3-8 hours Convenient to carry: compact and lightweight, can be carried or hung a backpack, with a stand for outdoor cycling, it is a convenient travel companion wherever you go Product Description: Product Name: Bluetooth Speaker Product color: Product Material: ABS Bluetooth version: 5.2 Power: 5W Audio battery: 3.7V650mAh Effective distance: ≤ 10m Audio playback duration: approximately 3 hours (70% volume) Audio charging times: ≤ 2 hours Frequency response range: 60Hz-18KHz Product size:10.5×7.6×5.5cm/4.13×2.99×2.17in Product weight:214g/0.472lb Package size:13.6×8×5.6cm/5.35×3.15×2.2in Package weight:260g/0.573lb Product List: 1 x Bluetooth speaker 1 x instruction manual 1 x charging cable