TC-508 TC-508U TC-508U1 Original HYT UHF 400-470 MHz Handheld Transceiver - 16 Channels, 4 Watts Battery Strength Indicator Programmable 25 / 12.5 KHz Channel Spacing Monitor CTCSS / CDCSS Selectable Squelch Level Squelch Tail Elimination Channel Scan Auto Battery Save Low Battery Alert Busy Channel Lockout (BCL) Time-out-timer (TOT) PC Programmable Wired Clone