OUTDOOR SPORTS SPEAKER - The TREBLAB HD77 is an outdoor speaker that allows you to take your music with you anywhere you go. Use freestanding or attach to a backpack with the strap and carabiner..

- SHOCKPROOF AND WEATHER-RESISTANT - Water-resistant with IPX6 technology to protect from light rain and accidental splashes. Shockproof with rubber feet to protect from falls, knocks and drops.

- POWERFUL SOUND - Comes with 25W stereo sound and DualBass™ technology for strong, pure sound. TWS means you can connect two speakers to play together. Noise-cancelling technology means you can hear the music clearly over wind and background noise.