Wireless remote control for off-camera and on-board flash. Compatible with any digital camera featuring a hot shoe. Enables off-camera flash functionality across three mainstream camera systems. Sleek single-color design with 16-channel frequency modulation, 30-meter outdoor triggering range, and strong anti-interference performance. Low-voltage trigger (5V–12V), fast response, no flickering or signal leakage. Ideal for professional and enthusiast photographers who frequently use top-mounted flashes; designed to enable off-camera flash setups for flexible fill lighting. Specifications: Material: ABS Transmitter power: Built-in 23A 12V battery, rated for up to 10,000 operations Outdoor operating range: 30 m (98.4 ft) Indoor operating range: 25 m (82 ft) Channels: 16 Frequency: 433 MHz Maximum sync speed: 1/250 s Product appearance and labeling may vary slightly by batch; functionality remains unaffected. Color: As shown Package includes: 1 × Radio wireless transmitter 1 × Flash synchronizer Note: Color representation may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.