Included items:1 x RW-221 transmitter1 x RW-221 receiver1 x Shutter release cable1 x Instruction manualPlease note: No batteries are included in the packing.1. Single shooting: put camera in Single shot mode, put Transmitter in Single shot mode.2. Continuous shooting: put camera in Single shot mode, put transmitter in continuous shot mode. ( Number of frames depends on the camera.)3. High-speed shooting (CH): put camera in continuous shot mode, put transmitter in bulb mode. A half-press of the shutter button will focus, a full press will start and a full press again will stop. ( Number of frames depends on the camera.)4. Bulb: Put camera in bulb mode, put transmitter in bulb mode. A half-press of the shutter button will focus, a full press will start and a full press again will stop.5.Four seconds delay shooting: Put camera in single shooting mode, put transmitter in 4 seconds delay shooting mode.