Advanced Safety Features: This portable hands-free music speaker is extremely safe, even when you use it when you take a shower, because it never overheats. Features a unique dynamic following voltage regulation technology to dynamically adjust according to the audio signal. This makes the small Bluetooth speaker a perfect gift for your family and friends, both indoors and outdoors. Tough & Weather-Resistant: Engineered to handle rough use and adverse weather conditions, this waterproof speaker with rubber coating features an IPX7 rating for protection against water immersion. The waterproof small Bluetooth speaker with a carabiner clip is an ideal choice for outdoor events and is perfect for use at parties, pools, on the beach, while camping or hiking, and more. Small Speaker, Big Audio: The Boomcore portable Bluetooth speaker delivers surprisingly big audio and brilliant sound from its ultra-compact size. You can enjoy the surround stereo sound with 2 mini speakers by pairing the TWS function, it's an auditory experience that's truly unparalleled. Brilliant Music: The Boomcore portable music speaker with Bluetooth has a 1.69-inch NdFeB driver, a symmetrical magnetic circuit with a bifilar coil and exclusive technology that produce incredible sound. The wireless Bluetooth speaker can be connected to phones, tablets, PCs, or any other Bluetooth device. Music Anywhere, Anytime: The built-in 1800mAh rechargeable cell in the boomcore ultra portable Bluetooth speaker can provide up to 12 hours of playback at 50% volume on a single charge. Take your music with you wherever you go with Boomcore portable Bluetooth speakers. It is perfect for outdoor events and adventures.