1: Customized frequency    
2. 8-10 Channels(depend on country)
3.Transmit power:10mW
4.Communication range:1-2KM(in open space)
5.Clear LED screen display
6.Built-in flashlight
7.Key lock function
8.Built-in Roger beep
9 3 level volume options
10.HD sound quality & easy operation
11.Auto Power Saving & Auto Noise Squelch
12.Type-C charge port
13.Front panel can be changed(Not supply)
14.Use 3 PCS AAA Alkaline batteries(Not supply)
15.Use 3 PCS AAA NI MAH rechargeable batteries(supply)