The Pixel Wireless TTL Flash Triggerproduct enables Nikon cameras and flash toexecute high-speed synchronous photography, as well various creative flash functions, includingl-TTL ,BL, FP and other functions. Maximum shutter synchronization speed up to 1/8000s.TR-331 Features TR-331 uses a global free FSK 2.4GHz wireless channels with 15 selectable channels. Maximum control distances up to 65 Meters. Use the LCD to display channel, power, and functional mode. Ultra-low power consumptionwith standby time for TR-331 TX transmitterofmore than 1000 hours,and TR-331 RX receiver standby timemore than 500 hours. Compatible with all Nikon DSLR cameras. Compatible with Nikon SB-900, SB-800, SB-600, SB-400 flashgun with various creative modes. TR-331 Functions Simultaneously control multiple flash or studio lights. Support for flash's auto-focus feature. Support a variety of shutter speeds, its max up to 1 /8000s. PC socket controls studio lights and other brands flash with PC interface.Camera compatible with TR-331 TX Compatible with Nikon CLS DSLR cameras D3, D700, D2 series, D300S, D300, D200, D90, D80, D70, D70Sseries, D5000, D3000, D60, D50, D40, D40X series, F6 and so on. Compatible with Nikon l-TTL COOLPIX Camera COOLPIX8800, COOLPIX8400, COOLPIX P6000, COOLPIX P5000, COOLPIX P5100 etc. Compatible with other DSLR camera compatible with Fujifilm S5 Proand Nikon flash camera. Flash compatible with TR-331 RX Compatible with Nikon's flash SB-900, SB-800, SB-600, SB-4OO. Compatible with other brands flash Compatible with Nissin & Nikon camera's flash.Package Included: TR-331TX (Transmitter) x1 TR-331RX (Receiver) x1 CR-2 Lithium Batteryx2 English Product Manual x1 PC+6.3 cable x1 PC+3.5cable x1 (Original Manufactory Package)