Bluetooth Speaker Powerful Bass, IPX4 Waterproof Wireless Speakerphone with Microphone for Clear Hands-Free Call, CSR Stable Signal, 16 Hours Streaming time, AUX Line-in Audio - Basstyle TB-26S Blue SUPERIOR SOUND QUALITY: Rich clear & resonant, with punchy deep bass. Experience your music in full-bodied stereo realized through dual high-performance drivers, each 6W power, and noise cancelling system. Less than 1% harmonic distortion ensures enhanced clarity and fidelity. You can hear the separation between instruments and vocals as if they're coming out of different speakers. INCREDIBLE BATTERY LIFE: Up to 16-hour music playtime powered by 2 built-in high capacity Lithium batteries, each 3.7V / 2000mA. Enjoy indoor outdoor activities all day without any worry for battery. FOREMOST CSR V4.0 Bluetooth technology provides stutter-free & smooth wireless music streaming, seamless high clarity audio, and outstanding stable connection within 33 feet / 10m distance. Besides, it also allows less power consumption to ensure longer working time. IPX4 WATERPROOF level, splash-proof on surface feature guarantees better user experience when playing music around the house, shower, beach, camping, hiking, rafting or backyard poolside. ITS NOT JUST A SPEAKER, BUT ALSO A SPEAKERPHONE. The built-in microphone supports hands-free and clear phone calls. Whats more,it can also be connected to non-Bluetooth devices to stream music by the AUX port and coming with 3.5mm Aux input audio cable.