HD 360 Surround Sound: The portable Bluetooth speaker delivers rich bass, large volume without voice pause, and a 360 sound effect. Equipped with a 10W high-quality speaker, its 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 exceeds expectations for its size.Powerful Battery Life Up to 24 Hours: Compact in size but strong in capacity. Enjoy uninterrupted music day or night. Playing at 40% volume when fully charged provides up to 24 hours of continuous playback.IPX7 Waterproof & Anti-Damage Protection: IPX7 rated protection guards against rain, dust, snow, and splashes. You can enjoy music by the pool, at the beach, in the bathroom, and in other environments. The speaker is also shockproof. Even if dropped from 1.5 meters, it remains durable.Bluetooth 5.0 Wireless Stereo Pairing: Featuring the latest Bluetooth 5.0 technology with A2DP transmission, it offers lower power consumption compared to Bluetooth 4.2, faster transmission speed, stronger anti-interference performance, and a more stable signal without delay. Two M7 wireless speakers can be paired for true wireless stereo sound, playing left and right channels independently.