X21 Dual Portable Bluetooth Speakers Waterproof Outdoor Wireless, Pack 2 Black Stunning Audio With Rich Bass: With dual passive radiators and Digital Signal Processor, X21 Portable Wireless Speaker pumps out rich bass, astonishing crystal clear sound and enhances clarity of mids and highs without distortion at any volume. Super Handy Multifunctional: Built-in FM radio stays tuned on the go; Bluetooth 4.2 (100 feet range) , AUX jack Micro-SD card slot provide wide compatibility from phone, tablet, smartwatch to laptop, and MP3 player. A great portable wireless speaker with FM radio for home, travel or outdoor sports. Rugged Weatherproof for Outdoor Activities: Features compact cylinder shape and rubber bumpers, X21 portable Bluetooth speaker caters perfectly to boating, golfing, biking, hiking camping. IPX6 splashproof, dustproof shockproof features allow you enjoy music in shower, beach and poolside. Dual Wireless Stereo Pairing for Awesome Stereo: With two X21 waterproof Bluetooth speakers you can wirelessly pair 2 of them play together for a full left right channel for great booming stereo. A powerful, loud Bluetooth speaker set for party, movie, music (sold two as a pack) Build to Last : Build-in battery supports up to 10 hours of playtime; portable enough to fit into backpack bicycle bottle holder; Build-in Hands-free speakerphone mic; Hard EAV Travel Case INCLUDED. X21 outdoor portable speaker comes with features you need to fill your life with joy.