[Warranty] 30 days money back guarantee and 1 year limited manufacturer warranty. | [Perfomance] Providing premium helmet audio experience since since 2005. Over 15 years to PERFECT the audio experience. **WARNING** When properly installed, the audio volumes can reach as high as 100dBs (dependant on the audio device). The XSound 4 helmet speaker delivers full range clarity with solid clean bass and crisp highs, rivaling some of the best full sized headphones. Follow the installation guide in the instruction manual for the optimal audio experience. | [AF Technology] Our new Acoustic Flex (AF) technology solves the age-old issue of speaker positioning in helmets. Ensuring optimal acoustics, AF allows the helmet speaker to rest precisely on the surface of the ear. Even with the natural sliding of helmets, the AF cover, made of an incredibly thin and soft material, molds and positions itself to your ear’s shape without additional pressure. Experience perfect positioning for hassle-free and comfortable listening. | [Perfect Speaker Positioning] The AF helmet speaker cover technology not only ensures proper acoustics but also molds and positions itself to the unique shape of your ear without applying extra pressure. This innovative design guarantees a comfortable and personalized fit, providing an optimal listening experience every time. | [Minimal Audio Loss] Our Acoustic Flex helmet speaker cover technology not only ensures proper acoustics but also molds and positions itself to the unique shape of your ear without applying extra pressure. This innovative design guarantees a comfortable and personalized fit, providing an optimal listening experience every time. | [Dimensions] 45mm drivers tuned and packaged in a thin lightweight aluminum chassis (0.99cm/0.39" thin, 34g/1.2oz). Varied length Kevlar-reinforced wires stand up to 10lbs of pulling tension. Left wire - 40cm and right wire - 20cm for a tidy install. | [Compatibility] The XSound 4 helmet speaker uses a 3.5mm audio pin. Compatible with most bluetooth comms, smartphones and mp3 players. Please ensure that your device has a 3.5mm earbud jack/female plug (only compatible with motorcycle intercoms with a 3.5mm earbuds jack) | [Speaker Kit Installation] Speaker placement is critical for audio quality and volume. The XSound 4 kit includes super strong 3M velcro stickers, foam spacers, foam covers and an extension cable.. The accessories keep your speakers stay in place and to align the speaker as close as possible to your ears for the ultimate audio clarity and volume in your helmet.