Hot Shoe Flash Lamp 16 Channels Radio Wirele e Speedlite Flash Trigger Shutter Synchronizer Receiver nsmitter Feature: 1. Wirele e control off-camera flash on-board flash, as long as the digital camera has a hot shoe, you can off-camera on-board flash from three mainstream brands; 2. Special one-color design, with 16-channel frequency modulation, 30-meter long-distance trigger, strong anti-interference ability; 3. Low voltage (5V-12V) trigger, sensitive response, no stroboscopic, leakage and other undesirable phenomena; 4. Suitable for profeional photographers and photographers who often top-mounted flash; mainly d for different brands of on-board flashes to achieve off-camera flash, which is convenient for photographers to fill light. Specification: Material: virgin plastic molding, metal hot shoe seat nsmitter battery: 23A-12V battery (built-in), can be d up to 10,000 times Receiver battery: 2*1.5V-AAA (standard AAA battery, NOT Included) Outdoor e control distance: 30m/98.4ft Indoor e control distance: 25m/82ft Channel: 16 channels Frequency: 433Mhz Maximum synchronization speed: 1/250S Packing size: 200*150mm/7.8*5.9in Advantage: 1. The overall height is designed to be moderate, so the photographer will not affect the shooting effect due to the high trigger; 2. The connecting tripod is fixed by a 1/4" nut, and the flash will not fall down due to loosene; 3. The FM switch is outside, which can be adjusted at any time, which is convenient for the photographer to quickly tune the frequency and not mi the wonderful shooting; 4. The receiver's power supply is 2 AAA batteries. The photographer can replace the batteries anytime and anywhere, so there will be no trouble finding batteries! 5. The hot shoe seat adopts the tapping structure, and there will be no loosening! (The hot shoe seats on the market mostly s-tapping screws to tighten the plastic parts, which are easy to loosen) Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.1 X nsmitter 1 X Receiver 1 X 2.5mm Camera Sync Cable