HD 360 Surround Sound: The portable Bluetooth speaker delivers rich bass, large volume without voice pause, and a 360 sound effect. It is equipped with a 10W high-quality speaker. The smooth and flexible design offers a great visual experience. High frequencies are transparent and bright, mid frequencies are clear and crisp, and low frequencies are deep yet powerful with full sound. It provides rich sound and enhanced bass that goes far beyond its size.Powerful Battery Life Up to 24 Hours: Compact in size but with long-lasting performance. Enjoy uninterrupted music day or night. Fully meets your needs throughout the day. Playing at 40% volume when fully charged can provide up to 24 hours of continuous playback.IPX7 Waterproof & Anti-Damage Protection: IPX7 rating protects against rain, dust, snow, and splashes. You can enjoy music by the pool, at the beach, in the bathroom, and in other similar environments. It is also shockproof and durable. Even if the Bluetooth speaker falls from a height of 1.5 meters, it remains intact.Bluetooth 5.0 Wireless Stereo Pairing: Features the latest Bluetooth 5.0 technology with A2DP transmission. It offers lower power consumption compared to Bluetooth 4.2, along with faster transmission speed, stronger anti-interference capability, and a more stable signal without delay. Two M7 wireless speakers can be paired for true wireless stereo sound, using both the left and right M7 Bluetooth speakers.