Great choice for professionals. The Jumper T-Pro has built-in USB-C charging and can run for up to two hours on two regular 18650 batteries. The CC2500, NRF2401, A7105, and CYRF6936 RF Chip modules are all assembled on a single board for the internal RF system. Included is the JP4-in-1 Multi-protocol module. You can change the fail-safe settings for any or all of the channels as necessary.