About this item ?【???? ????????? & ???????-????? ?????】This intercomunicador para casco de moto utilize an upgraded 40MM dynamic speaker, making breakthroughs in bass resonance and sound clarity. With these speakers, every note and every word will come to life, delivering an extraordinary auditory experience like no other. Riders can experience crystal-clear audio during music playback or communication, while also enjoying powerful bass resonance effects. ?️【????-???? ???????? ?????? ?????】This motorcycle communication systems is specifically designed for dual riders, such as couples, spouses, and parent-child pairs. It adopts 5.1 Bluetooth Chip, enabling dual intercom communication within a range of 1000 meters without any intercom delays. Moreover, it supports connectivity with third-party brands, enabling you and your riding partner to chat and share every moment of your riding experiences together！ ?【????? ?????? ?????-?????????】The Shark motorcycle helmet speakers possess the most advanced Triple Noise-Reduction technology（???? ???, ???, ????????? ???）, Combined with a compatible helmet, which can reduce noise by 96 to 99%. The sound quality is not affected by speed！ Even at speeds of up to 120 km/h, you can still enjoy exceptional music and communication clarity！ ?【?????-???? ?????????? & ??????????????? ????? ??????】The Shark motorcycle helmet bluetooth headset features a streamlined biomimetic shark design that is windproof, noise-reducing, and incredibly cool. It comes with interchangeable three-color stripes, allowing you to customize the look, ensuring it matches any helmet type or color. It is the perfect choice for couples, lovers, and families who want to ride motorcycles together！ ?【??????? ??????? & ??????????】This Motorcycle headset is equipped with a 1000mAh high-capacity battery, which can support uninterrupted talk time of 28 hours, music playback for 33 hours, and an ultra-long standby time of 550 hours with just a 2-hour quick charge. It is waterproof and dustproof, allowing for usage in any environment. It is undoubtedly the best companion for your long-distance rides！