Features: 1. Use advanced Bluetooth audio decoding chip to support the connection of all Bluetooth devices. 2. Multi-flash mode LED light design, the light can flash with the music melody and switch with one click. 3. Grille design prevents water, dust and vibration from entering the speaker. 4. 20W high power, providing 360-degree stereo sound, giving you clear sound quality. 5. One-touch calling function eliminates microphone noise and makes it easier for you to answer calls when your mobile phone calls. 6. Supports TWS function, two speakers can be connected simultaneously through one mobile phone. 7. Supports TF card or misro SD card, up to 32G, supports AUX, and supports USB2.0 hard disk. Specifications: 1. Bluetooth version: 5.3 2. Transmission distance: 10M 3. Battery capacity: 2400mAh 4. Charging time: 2-3 hours 5. Normal playback: about 3-5H 6. Speaker specifications: 52mm 7. Speaker power: 4 ohm 10W x 2 8. Frequency response: 70hz-20khz 9. Signal-to-noise ratio: greater than or equal to 85dB Packaging list: - Speaker x 1 - Charging cable x 1 - Speaker cable x 1 - User manual x 1