SENWOW Bluetooth 4.0 Portable Wireless Speaker, 10W Output Power With Enhanced Bass, IPX6 Waterproof, Build In Microphone for Handfree Phone Call SUPERIOR BASS PERFORMANCE: 2*5W stereo speakers deliver superior bass performance for those low tones that help ensure rich, high-quality sound, passive radiator could provide strong bass without distortion even at highest volume. IPX6 WATERPROOF: rainproof, splashproof, dustproof, sandproof, built-in 2000mA rechargeable battery for up to 10 hours of playtime, light weight (9.6 oz), great for outdoor &amp; indoor sports. BLUETOOTH 4.0 TECHNOLOGY: Latest Bluetooth technology offers high compatibility to pair with Bluetooth devices(Bluetooth V2.1 and over) from up to 33 feet away. Compatible with iOS &amp; Android Smart phone, iPhone 7/7plus/6S/6/6plus/5s, ipad iPod; Samsung Galaxy S6/S5/S4/S3 Note 4/2/3; Galaxy, Sony and BlackBerry Smart phone. Tablet, Microsoft Windows OS computers. MULTIFUNCTIONAL: built-in mic for hands-free speakerphone phone calls; play audio from laptops, PCs non-Bluetooth devices with 3.5mm audio cable/AUX-IN jack; Includes Micro-USB cable for charging. ONE YEAR WARRANTY: we provide 30 days money back guarantee and 1 year warranty. Please contact us if there is any question, we will get to you within 24 hours, offer the best customer service and tech support.