The BETSO TCX-2+ is ultra compact highly accurate timecode transceiver and generator.   Even though it’s quite tiny, it still has an OLED display to show the actual timecode and the onboard menu system.  It uses a single easy to replaced AA battery.  New RF transmission brings wireless continuous jamming of time code with 0 ppm error.   It’s a transceiver so you can designate in it’s menu system whether it functions as a transmitter or receiver.  One unique feature is that transmitter can be set-up for automatic use.  Even if it is turned off, if it detects a TC signal coming into its BNC connection it will automatically turn itself on, jam to that incoming signal and start broadcasting that signal to the other units designated as receivers.  So if you have it connected to your audio recorder, as soon as you power it up your recorder will start outputting timecode, triggering the TCX-2+ to turn on and broadcast timecode.  Sync is automatic and super convenient.