PECHAM Waterproof Bluetooth Speakers Wireless CSR 4.0 10W Drivers Super Bass Stereo Sound 10 Hours Playtime Outdoor Portable Universal Compatibility for iPhone iPad Android Smartphone Amazing Sound: Great sound quality powered by two high-performance drivers (5W) with passive subwoofer. Bluetooth 4.0 technology assures smooth signal transmission and easy pairing to your devices within a range of up to 33 feet. 10-12 Hours of PlaytimeA built-in high capacity rechargeable battery allows uninterrupted music all day. P16 automatically powers off when disconnected over 10mins, saving its battery. Durable and High Quality Waterproof, dust-proof, drop-proof, shockproof, the rubber encased PECHAM P16 is built for durability in harsh environments. A metal loop allows you to attach your speaker to your backpack or belt, making it ideal for outdoot actitivities. Universal Compatibility Compatible with a variety of electronic devices, including Apple iPhones, iPads, iPods, Macbooks, PC Laptops, Samsung Galaxy, Samsung Galaxy Note, Google Nexus, Nokia Lumia, Motorola, HTC & Other Android Tablets. As well as PC Desktop Computers (PC compatibility may vary). 18 Month Warranty As a company focusing on quality and service, we would like to provide an 18-month warranty to all our customers.