TW-283 assist Auto-focus, Single shooting, Continuous shooting, BULB shooting, Delay taking pictures and Timer time table taking pictures Delay Shooting Setting can set put off time and number of shots: put off time alters from 1s to 59s, and number of shots alters from 1 to 99 Distance as much as 262ft/80m distance (no obstacle), no directionality, it'll remote your digital camera with on problem, and ultra-powerful anti-interference capability with 30 channels for option, it will keep away from interference caused by different same devices Using international 2 transmission technology, it&;s secure and brief in response to shutter FSK 2 WIRELESS CONTROL SYSTEM--- It aspects no directionality, 80M+ wi-fi distant distance and ultra- powerful anti-interference ability With 30 channels for options,it can keep away from interference caused by different identical instruments Using overseas 2 transmission technology&;s secure and brief in response to shutter TW-283 is one of those multi-functional shutter remote control Before working this Timer Remote Control, please learn the User Manual permanently and save this manual for destiny use Batteries - Please use 4 new batteries - Please install batteries wisely to the compartment in line with the + and - terminal of the batteries Please discuss with your digicam manual and connect the Receiver with the correct remote socket of digicam Make sure the cable is inserted to the top for good touch This shutter control may not be able to hearth the digicam if the connecting cable is NOT inserted to the correct remote socket or not inserted to the tip Channel - The Transmitter and Receiver needs to be setted to the same channel If the variety of pictures you would like take is less than 99, it's not needed to set Repeat Timer (REPEAT & N2) Please see the photographs of this product There are some instructions shown within the photos Specification: System mode: FSK 2 wi-fi management method Communication channel: 30 channel Transmission distance: over 260 feet/80m Transmitter Stand-by Time: over 1000hrs (with 2 pcs AAA batteries) Receiver Stand-by Time: over 400 hrs(with 2 pcs AAA batteries) Transmitter Dimension (LxWxH): 146X40X19mm Receiver Dimension (LxWxH): 73x38x31mm Weight: Transmitter: 52 (excluding batteries) Receiver: 36 (excluding batteries) Package included: TW-283 Transmitter X 1 TW-283 Receiver X 1 Shutter Connecting Cable X 1 User Manual X 1 (Batteries aren't included) Refer to "+" / "-"within the transmitter&;s and receiver&;s battery compartments to insert the batteries The receiver flash as pink LED light;If the sunshine doesn&;t flash,it ought to be the battery reversed the route