- Loud Portable Bluetooth Speaker with 30W Peak Power: TREBLAB HD77 offers 25W RMS and 30W peak output, featuring dual 48mm drivers and dual passive bass radiators for bold, expansive sound anywhere. - Travel Bluetooth Speaker with Extended Playtime: Enjoy up to 20 hours of music with a 2600mAh battery. Lightweight, with a strap for portability, it’s the ideal small wireless Bluetooth speaker. - Portable Speaker Bass with TWS Stereo: Elevate your audio with rich bass and TWS pairing. Bluetooth 5.0 delivers seamless connectivity, perfect as a bluetooth speaker for office or outdoor enjoyment. - Bluetooth Speaker with Lights and Robust Waterproofing: The HD77 dazzles with vibrant RGB lighting and an IPX7 waterproof build. Experience a waterproof speaker bluetooth perfect for poolside, beach vibes, and biking escapades. - Waterproof, Sandproof and Bike-Ready: Built with a tough ABS+fabric body, this beach speaker waterproof sandproof design excels at the beach, camping, or on rides.