The 72M comes with four banks (A, B, C, & D) that can be channeled independently of each other. Simply press CH+ or CH- on the 72M to set a bank to a channel between 00 and 99 (00 and 199 on firmware 6.0.0 or higher). Press the 'Change Bank' button to toggle between banks and use the CH+ or CH- change the channel for the selected bank. Banks can be set to any channel in any order. For example, bank A can be set to channel 2, bank B can be set to channel 3, bank C can be set to channel 4, and bank D can be set to channel 5. Then, by changing the channel on the 18R or 18R2 Controller, you can fire any bank set to the same channel.

At COBRA, we believe safety and reliability are the most important features of any firing system. With that in mind, every COBRA system incorporates the below collection of technological and usability based features. This ensures safe and reliable functionality every time you use the system.

• IEEE® Unique Network MAC Addresses - Every COBRA remote contains a fully unique network MAC address. This address is programmed into the unit at the time of production and contains 16 x 0-F base-16 values. For example, 00.1C.2C.00.00.C0.00.01.

  By syncing a firing module to a remote, the remote's network MAC address is saved and remembered on the firing module, even after power-on and power-off. Once saved, the firing module will ONLY respond to the remote containing this unique MAC address. This prevents any other remotes from firing your system. In addition, any time a firing module is synced to a different remote, the previous MAC address is overwritten, thereby ensuring the firing module only responds to the last remote to which it was synced.

• 2.4GHz transceiver modules - The COBRA 72M uses a 2.4GHz transceiver module manufactured by Synapse, a US company that both develops and manufactures its SNAP line of IEEE 802.15.4 radio modules and transceiver ICs.

  The same transceiver and software development platform is used successfully not only by COBRA, but also in a variety of safety-critical industrial wireless applications, including medical monitoring systems and airport lighting controls.

• Redundant, solid-state, self-testing MOSFETs - The COBRA 72M uses redundant solid-state firing FETs on both the high and low side of each firing cue. This ensures that no power is supplied to the cue unless the firing module is both armed, in fire mode and is actively firing a cue. The redundant FETs provide protection against unintentional electro-static discharge (ESD) and serve to automatically test for damaged or shorted FETs upon system start-up. If detected, the system will automatically disable itself and will not operate.

• NFPA compliant user-design - The COBRA system adheres to National Fire Protection Association (NFPA) chapter 9.2 requirements including a key-operated switch, multiple actions to arm and fire, and minimum current requirements when performing continuity tests.

• Contains FCC, CE and IC certified RF Module - The 72M contains the Synpase 802.15.4 2.4GHz RF transceiver module.

• Easy to Charge - A charge port and charge indicator exists on the top of the module for simple charging. If you use armored cases, the faceplate supports charging while the 72M is still in the armored case. Use our Single LiPo charger, charge up to five modules at once with our 5 Module LiPo Charger option, or ten with our 10 Module LiPo Charger

• External 12-24V DC Input - Rugged external binding posts support external 12 and 24V DC input. For permanent installations, we offer a custom 110/220V A/C to 24V D/C converter. Use the internal LiPo battery pack together with the A/C input to act as a real-time power backup.

• Increased Amperage - Replaceable 9V batteries produce a peak current of 3 Amps. Using the LiPo battery pack, this increases to 6 Amps. Using the external power input, we can produce up to 9 Amps of peak current. This will support firing up to 5 and 16 e-match / clip-on igniters respectively, in addition to also supporting the firing of high current devices such as confetti cannons, flame projectors, and cryo jets.

• Cold Weather Performance - Fire extreme cold shows with confidence with improved cold weather performance down to -20F / -29C.

• Dual Protection Circuits for LiPo Safety - COBRA incorporates dual overcharge, undercharge, and overvoltage protection circuits. The first protection circuit is built into the 72M motherboard. The second protection circuit is built into the battery itself. This means if one of the protection circuits fails, the other acts as a backup. While we don't expect any failures, feel confident that we have designed both the battery and charge circuitry with the highest level of safety and protection in mind.