[Unbelievable battery life, very suitable for outdoor and shower] This Bluetooth speaker has a built-in high-capacity lithium battery, which is more durable. When connected via Bluetooth mode, the battery level of the Bluetooth speaker will be displayed on the phone. $ [IP45 Waterproof and Dustproof] The silicone shell and interface design ensure shockproof, dustproof and waterproof, which is very suitable for outdoor and shower. It can also be used in harsh environments. $ [Impressive and friendly design] The aluminum alloy carabiner allows you to easily hang and fix it wherever you want, and the effective waterproof level reaches IPx45, allowing you to enjoy wonderful music in the bathtub. $ [Built-in microphone and hands-free function] You can use this mini bluetooth speaker to conveniently answer calls anywhere in the car, bathroom, home or office, as long as it is connected to your smartphone. $ [High compatibility] Use the latest Bluetooth version, because the size of the battery is visible on the phone, you can use this wireless Bluetooth speaker at home, office, car, outdoor, etc. It supports any device via Bluetooth or Aux cable, such as iPhone, iPad, Samsung, PDA, computer, Macbook, MP3 player, laptop, etc.