Seamless Usability – Jump into music in just seconds. Each set of wireless outdoor speakers includes LED backlights to help quickly connect and set the mood. 1-Year Warranty and A+ customer service. A Travel-Worthy Companion – Wander the world with a portable Bluetooth 5.0 speaker at your side! Complemented with a carabiner/strap, USB-C port, and battery life up to 20 hours. Hassle-Free Connectivity – Rapidly connect any Android, iOS, laptop, smart TV, or smart device to the HD77 in no time. Each wireless speaker with microphone is great for taking & making calls. Ultra-Durable Body – Conquer Mother Nature’s fiercest challenges with an impact-resistant, shockproof, dustproof and IPX6 waterproof Bluetooth speaker. Ideal for outdoors, parties, and more. Immersive 360° HD Sound – Experience crystal-clear surround sound with portable Bluetooth speakers crafted with loud 30W stereo speakers. Connect two HD77 loud speakers through TWS mode for double bass and power.