Compatible with all TTArtisan flashes and the perfect pairing for the M01 flash, the J01 Wireless Flash Trigger from TTArtisan features a dedicated channel connection allowing convenient off-camera lighting up to 9.8' away. It's powered by a built-in lithium battery and charges via a USB-C port. Weighing just 0.6 oz, the J01 is ideal for traveling with and can easily fit inside your pocket or camera bag.