Waterproof Shockproof, Power Bank , Micro SD Card Players (Black) HIGH QUALITY STEREO SOUND: With 2 x 45mm drivers, S6 wireless speaker streams incredible Hi-fi sound. Super bass booms with less than 1% harmonic distortion. With built-in microphone for hands free calling, you can enjoy clear phone calls all the time. 4000mAh RECHARGEABLE BATTERY: S6 Bluetooth speaker with built-in 4000mAh rechargeable battery not only provides up to 10 hours of playtime, but also can be used as a portable emergency power supply to power your devices. ULTRA PORTABLE: Designed in small size but powerful function. This Bluetooth speaker fits easily into your bag or pocket, Perfect for travel, hiking and camping outdoor activities. PREMIUM QUALITY: Made of high quality material to ensure the Bluetooth speaker is sturdy and well-built. With IP65 standard splash proof and dust proof system to keep the speaker safe. Bluetooth 4.1 technology: Equipped with the advanced technology, compatible with all Bluetooth enabled devices that allow you to instantly connect to your devices up to 33 ft away. Bluetooth/ AUX mode/ TF card play mode for selection.