By pressing the MENU button (P1) on the station you can access the settings menu that allows activating and deactivating the station functions, as well as selecting the norm. By selecting one of the 10 available standards (EC, EU, d, I1, I, EU, UK, PL, F and E) you can use the TTi TCB-H100 station anywhere in Europe. CB TTi TCB-H100 radio can be powered both at 12V or 24V through the car adapter included in the package, and at 7.4V through the Li-Ion battery available in the package with TTi H100 accessories that can be purchased separately. Adjustable squelch - which reduces background noise to a minimum; Channel scan; Key lock; Sound key; Echo on broadcast function; Roger beep (an acoustic signal at the end of the show); Vox (broadcast without pressing the PTT button); emission signal power display (S-RF). CB TTi TCB-H100 radio was created taking into account the basic needs of a CB band user: DSS (Dynamic Squelch Tuning System) - the station squelch level is dynamically adjusted to an optimal level to get the best reception Similar to a walkie-talkie in size and portable design, the TTi TCB-H100 CB Radio retains all the features of a CB radio station: 26-28MHz frequency range, 4W transmission power, AM / FM modulation, 12V or 24V power supply.