1. 8 bit LCD display. 2. Multi-functional navigation key operation and the function mode is optional. 3. This machine can measure the frequency of any digital and analog signal. 4. 20 extrasensory synchronous RF signal strength indicator , sound and light vibrate silent alarm is optional. 5. Squelch adjustment. 6. 2 hour Low-power lithium battery. 7. High, medium and low battery LCD display. 8. LED charge status indicator. 9. Configured with full-band antenna and charging adapter.