Compatibility: Nikon F mount D1X D2 D2H D2X D3 D3X D200 D300 D300S D700 D800 D810 D80 D90 D600 D610 D3100 D3200 D3300 D5000 D5100 D5200 D5300 D5500 D7000 D7100 D7200 ,etc ; Z Mount Z6 Z7 Package included: 1 x MK-GT620 TTL Transceiver 6 x Adapter Rings ( 52mm,55mm,58mm, 62mm, 67mm, 72mm, 77mm ) 2 x MK-R200 Wireless Remote Flash Supports High Speed Sync, Front-curtain Sync, FE lock and Rear-curtain Sync and 2.4G Wireless Transmission Flash Trigger, Nikon camera menu accessible Supports flash ratio adjustment, each R200 supports 2.4G macro triggered flashing with three groups A/B/C, four channels and synchronized flash of multiple lamps with 7 levels（1/64-1/1） for the intensity adjustment for the flash control The MK-MT24 lamp holder can hold up to 8 R200 with it’s unique design,each R200 can be attached or freely to create desirable lighting environment for any subject at hand