Features: High-definition HIFI stereo speaker: 32MM professional audio speaker, highly restore the music texture, allowing you to enjoy high-quality music while riding. Two-person network 300 meters intercom: No matter how far you and your friends are, as long as they are within 300 meters, they can maintain clear communication, making riding more relaxed and happy. Intelligent noise reduction processing: Intelligent microphone pickup, combined with echo cancellation processor and noise reduction technology, can ensure the clarity of the call even in a noisy environment. Humanized design: The small and simple appearance, lightweight design, reduces the burden on the neck during riding, and reduces wind resistance. The control key design is simple and easy to understand, even the blind can easily operate. Ultra-low power consumption: 450mAh capacity battery, intercom for 15 hours, call for 18 hours, listen to music for 18 hours, making your riding journey more worry-free. Specification: Material: ABS Silicone Number of connections: 2 Maximum range: 800 metres Talk time: