?Fast Connection & IPX7 Waterproof ?Monster wireless neck speaker adopts Bluetooth 5.0 technology and enjoys 2 times the transmission speed, no signal loss or music interruption. Compatible with any Bluetooth-enabled devices, including smartphones, computers, and TVs. Featuring IPX7 waterproof,can fully submerged in 3.3 feet of water for up to 30 minutes. So there is no need to worry when using it by the sea, in the pool, on a boat, or in a shower room. ?Hands-Free Calls & Upward-Facing Sound ?Precise voice pickup technology implemented in Monster Boomerang neck speaker, optimally and performs advanced audio signal processing to pick up your voice clearly and precisely for hands-free calls and Speak-to-Chat detection. Besides, this neck speaker built-in audio upward-facing function, delivers sound directly to the ears without disturbing others, creating a private personal music zone with a full range of deep bass. ?Ergonomic Design & Lightweight & Comfortable?The Monster Boomerang Neckband bluetooth Speaker is based on ergonomic design, once you put this wearable speaker around your neck, you’ll hardly know you’re wearing it, weighing only 0.46 lb (216 g), and you’ll never feel a burden by leaning lightly on the shoulder. Stay comfortable for listening all day. ?12H Long Playtime & Safety Awareness?With up to 12 hours of battery life, you can have the playlist going all day. Enjoy great music with the freedom of portability without the fuss of entangled power cords. It doesn't seal around or even touch the ear canal, It allows you to listen to your favorite audio and still be able to hear other pedestrians, passing cars, and anywhere you need to hear ambient noise. Always stay connected to the world without worrying about missing cues around you. ?Pure Monster Sound & 3D Theater Experience ?The Monster Boomerang Neck Speaker is designed and engineered by Noel Lee and the Monster Design Team in the USA with quality components that deliver best-in-class performance with zero distortion at any volume. With the Qualcomm chip and apt-X high-tech which is designed to enhance and reproduce perfect 3D stereo audio quality. Built-in 3W speaker system and 2 bass diaphragms, creating a truly unique and pure Monster sound experience.