1. Shocking subwoofer, portable waterproof Bluetooth audio, IPX7 professional waterproof 2. V5.0 chip for long-lasting battery life 3. The Bluetooth 5.0 chip can be connected with Bluetooth, supporting Android phones, Apple phones, iPads, various tablets, laptops with Bluetooth function, etc. The effective distance for connection is 10 meters 4. Take you to pick up the music without Dongtie: Woven lanyard design, sturdy, durable, and easy to pick up the sound system, which can be Hanging on backpacks or bicycles 5. Velvet like tactile sensation, controlled by the touch, beloved's introverted and refined character, compact and portable, music accompanying, and a touch of freshness in the morning 6.18 hours of battery life, smooth communication and unlimited communication; It's a speaker and also a smart phone for families. With a comprehensive upgrade to the Changlian call experience, the battery life increases by 20%, making the beauty of music always resonate in your ears 7. The enclosed body is more waterproof, with a fully sealed chamber design, reaching IPX7 waterproof level. The speaker can still be used normally after being immersed in 1 meter deep cold water for 30 minutes without being affected.