1.915MHZ USA/865MHZ EU Professional Communication Band：Offers significantly better signal penetration and interference resistance than 2.4GHz, delivering greater stability than Bluetooth Mesh or 2.4GHz Mesh. 2.Full-Duplex Communication&Hands-Free：With superior anti-interference capabilities and phone-like simultaneous talk-and-listen freedom, this device outperforms traditional half-duplex radios to skyrocket your team's communication efficiency. Speak without pressing any buttons, keeping your hands completely free during activities 3.Long-Range Communication：Up to 1.7 km line-of-sight range 4.Team Communication Support :Ideal for cycling groups, outdoor clubs, and educational settings, it supports up to 15 simultaneous users with a stable network that automatically maintains connections. 5.AI Noise Cancellation: Delivers exceptional speech clarity and naturalness through chip-level voice enhancement, wind noise recognition, and engine noise suppression with multi-scene adaptive algorithms