Features: Support YONGNUO RF602/603 Radio Triggering SystemFully compatible with the RF radio triggering signal of YONGNUO YN650EX-RF, YN685EX-RF, YN685II, YN720, YN685, YN560IV, YN660, YN560III, RF603, RF602; a total of 16 channels and 10,000 IDs (0000~9999) for choice, the effective triggering distance is up to 60 meters. Supports Multi-group Independent Flash ControlSupports 5 groups independent control, realizing remotely controlling the flash mode, flash output and focal length of YN650EX-RF, YN685EX-RF, YN685II, YN720, YN685, YN560IV, YN660, YN560III.(Note: this function needs to be supported by slave unit) Built-in Rechargeable BatteryBuilt-in 350mAh high-capacity rechargeable lithium battery, long battery life, and the battery remaining capacity is displayed in real time, and supports power saving function. Other Practical & Powerful FunctionsThe Flash trigger supports TTL, M, Multi and Gr mixed flash modes, and supports high-speed sync (1/8000s) flash function, USB type-C firmware upgrade, and has a high-resolution TFT-LCD screen with 5 built-in font colors to choose from. Compatible with Sony CameraCompatible with Sony MI Hot Shoe cameras, such as A9, A7RIV, A7RIII, A7RII, A7R, A7III, A7II, A7, A7SII, A7S, A6600, A6500, A6400, A6300, A6000, A58, A99, A99II, A77II, RX10, RX10II/III/IV.(Note: Not compatible with Sony A9II, A7SIII and A6100) Specifications: : YONGNUO Model: YN32-TX Radio Transmission: 2.4G Compatible Trigger System: YONGNUO RF Radio Trigger System Power Supply: Built-in lithium battery3.7V/350mAh Flash Mode: TTL/M/Multi/Gr Flash Sync Mode: Front-curtain sync / rear-curtain sync / high-speed sync Slave Unit Controllable Group: Up to 5 groupsA/B/C/D/E Transmission Range: Approx. 60m Channel: CH 1~16 ID Setting: 100000000~9999 Remote Parameter Control: Flash modeflash outputfocal length LCD Display Screen: TFT-LCD USB Interface: Type-C Item Size: Approx. 5.5 * 5.8 * 3.9cm/ 2.2 * 2.3 * 1.5in Item Weight: Approx.68g/ 2.4oz Packing List: 1 * Flash Trigger