1. 300W 2-channel amplifier with two 4-inch full-range motorcycle stereo speakers. Universal fit for 1 to 1.5 inch handlebars. 2. Supports Bluetooth wireless connection up to 15 m / 49.2 ft. with an innovative design of a hidden antenna. 3. 3.5mm/0.14in AUX audio jack available. Full functionality with wired control, safe and convenient when traveling. Perfect for 4 wheel ATV UTV RZR compatible with Polaris motorcycles. 4. 4 inch chrome speaker housing with full range speaker core. Made of ABS material, with high-performance bass. 5. Wirelessly stream your favorite music and radio channel from your smartphone. Compatible with iOs 4/5/6/7/8/X/Xs Max phones, for Samsung/Android/Galaxy S note series and any smartphone bluetooth 5.0 devices. 6. Advanced IP56 waterproof design (speaker only), with sound quality that is ideal for outdoor use. The amplifier is not waterproof. 7 . Includes full function with remote control cable. Easy to install, includes all necessary hardware and wiring. Plug and play, standard 12V power connector 8. M300 motorcycle/ATV audio system, Bluetooth support, FM radio, AUX input. 9. Equipped with a 300W peak power amplifier and a pair of 4-inch full-range speakers, it guarantees the sound quality necessary for driving. Item Type: Motorcycle Speaker Material : ABS Amplifier: 2.0 channels Rated output power: 2 x 20W. Peak Output Power: 300W. Speaker: 4 inch sound cavity, 2.5 inch core, 12W rated power, treble amplification technology Usage: Universal fit for 1 to 1.5 inch handlebars. Package List : 1 x pair of Bluetooth speakers 1 x 100W Amplifier 1 x 3.5mm audio cable 1 x DC power cord for the ring 1 x Remote Cord 1 x pair of 1 to 1-1/2 inch mounting brackets 2 x rubber strap 4 x cable tie 1 x fuse 1 x mounting kit Screw 1 x User Manual This product comes with an instruction manual, including product installation and usage instructions, so you can get acquainted with the installation and use of the product in a short time.