Channel: 16 Channels. Release: Half-way press, Full-way Press. Receiver Stand-by time: Up to 45hours (Using A. Производитель: YONGNUO. Упаковка: Да. Размер модели: YN-560 IV+RF-603 II N3. Type: FSK 2. Transmitter Distance: 100M. 4GHz wireless remote sustem