[IPX7 Waterproof] With IPX7 waterproof Function, the PA1 speakers can work against The gentle splash of water or rain, providing strong waterproof protection and rigorously tested to meet IPX7 waterproof speaker standards, easy to listen to music at anywhere. [Call Function] TOZO PA1 speakers support call function. And you can take conference calls or friend group chats and access your device’s default voice assistant right from the Bluetooth speaker. [25H Long Endurance] TOZO PA1 speakers lasts long time for normal use at any volume on a single charge. The powerful battery enables all day listening, which gives you excellent experience with a long endurance up to 25H. [EQ Mode Switch & APP Connection] TOZO APP provides PA1 speakers with quick and easy access to APP connection  and  customize EQ mode switch, which perfectly reflects different music styles, providing an incredible customized experience. [Stereo Sound Quality & Dual Pairing] TOZO PA1 speakers achieves dual pairing function, connects two PA1 speakers and they would play together at the same time. Futhermore, either of these two Bluetooth speakers can work perfectly on their own. Delivering superior 2.0 stereo quality, and the 67mm diameter speakers providing exceptional enhanced bass through a powerful and wide range of sound.