As a new generation license-free version, the BF-88ST Pro supports can be used right out of box. No legal issues, no frequency fee, and easy to operate. - Power Output: PRS 2W/0.5W | PMR446 0.5W - 22 FRS CH+12 NOAA Weather Band | 16 PMR446 Channel - 1200mAh Li-ion battery - 50 CTCSS Tones/ 105 DCS Codes - Keypad Lock - Flashlight - No Need to Program&License Free - Dual Watch - VOX/HandFree function - Emergency Alarm 　 How to promise a private conversation? The 155 private code feature can create a private space for your family or your crew. Once CTCSS/DCS is set, then within the communication range, your family or team members can only receive signals from the same frequency with the same setting.