PC speaker - Universal - S6 STEREO STEREO BLUETOOTH HAUTOOTH SPEAOTOOTH SANCHAOFER SANWOOFER SANSFERTOIRE SANSFRESSE AUX TF Battery 4000mAh Battery | Waterproof Bluetooth Speaker | waterproof speaker Highlights Universal S6 STEREO STEREO BLUETOOTH HAUTOOTH SPEAOTOOTH SANCHAOFER SANWOOFER SANSFERTOIRE SANSFRESSE AUX TF Battery 4000mAh Battery | Waterproof Bluetooth Speaker | waterproof speaker S6 STEREO STEREO BLUETOOTH HAUTOOTH SPEAOTOOTH SANCHAOFER SANWOOFER SANSFERTOIRE SANSFRESSE AUX TF Battery 4000mAh Battery | Waterproof Bluetooth Speaker | waterproof speaker MAIN FEATURES: 1). Built in 45mm high 45mm dynamic top-to-bottom dynamic drive units, provides good surround sound quality and stereo sound quality. 2). Waterproof, shockproof, dustproof specially designed for outdoor use, the aluminum edge, very durable to use. 3). Adopt Bluetooth 4.0 Chipset STABLE stable signal transmission, strong audio decoding, operating distance up to 10 meters, superior compatibility, work with all Bluetooth-enabled electronic devices, including smartphone, notebook, MP3, etc (Please note if you are using Smart TV or Desktop, it may need a Bluetooth adapter to use) 4). Built in 4000mAh super large capacity lithium battery, extremely long standby and using time, talk time/play time up to 15 hours. 5). Multifunctional design, not only a speaker, but the built-in 4000mAh battery and built-in USB port can be used as a power bank to charge electronic devices. 6). Built-in micro-SD slot, support TF card (max 32GB TF card), insert TF card with downloaded songs to play music like MP3 player, support songs format of MP3/WMA. 7). Support Aux Line-Out music play mode, use the standard 3.5mm audio cable Connect the speaker to mobile phone or tablet PC to play music even when your devices without Bluetooth function, can be used as a wired speaker. 8). Built-in sensitive HD microphone, hands-free support to answer incoming phone calls even when playing music or driving.