Studio Lamp Photography Light Transmitter Remote Control $ 17.28 Product information: Model: DM-16 Channel: 16 groups Transmission frequency: 433MHz wireless transmission Transmitter: 12v 23A lithium battery. Receiver: AC:100-240 50/60Hz Synchronous plug: 6.35mm/3.5MM Outdoor Control:30 m (open area) Synchronization time: 1/250s. Indoor control:20 meters (open area) Transmitter size: 6040 * 33mm/40G Receiver size: 7259 * 34mm/90g Packing list: DM-16 transmitter * 1, DM-16 receiver * 1, adapter * 1 Product Image: