ROCK RAU0758 Portable Bluetooth Speaker 1. Wireless connection range: about 10m 2. Size: 111x111x87mm 3. Weight: about 332g 4. Input: 5V 500mA 5. Playing time: about 3h 6. Support Bluetooth TF card AUX USB card reader to play 7. It adopts black and white classic color matching, which is fashionable and concise. 8. It adopts fabric weaving design, which is dustproof and waterproof. 9. Non-slip silicone pad, stable and not easy to tip or fall. 10. Wireless Bluetooth connection, compatible with a variety of devices, you can listen freely anytime, anywhere. 11. The shape is small and exquisite, the size of a palm, and it comes with a lanyard to meet the needs of outdoor travel. 12. It has echo cancellation and noise processing functions, making your calls clear and smooth anytime and anywhere. 13. Colorful lighting effects, dazzling with the rhythm of the music, more atmosphere. 14. Built-in large-capacity lithium battery, longer battery life and longer battery life. 15. Surrounded by stereo sound effects, the sound quality is clear, bringing you a different listening experience.