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1. RW-221 is Wireless remote control; it has single, continuous, bulb and delay shooting.
2. Different output cable can be connect with different brand camera.
3. The product surface is using high-end stain finish, it‘s more artistic.
4. Using FSK 2.4 GHz wireless controls system which more reliability and stability.
5. Using AAA battery, it‘s easy to buy and affordable.
a. Transmitter only uses lower than 2mA under working status. Receiver only uses lower than 2mA under working status.
b. 2pcs of battery working time is up to 400 hours, which is 5X save power compare with the similar product.