Model: GD-C1R16 - Color: Black - Material: ABS - Connection: Wireless - Compatible camera models: Canon EOS 30 / 33 / 50 / 50E / 55 / 400D / 450D / 300D / 350D / 500 / 500N / 300X / Kiss / New kiss / Kiss III / 7 / 7S / 400D; Pentax K100D / K110D / K10D / + More; Samsung GX-1L / GX-1S /GX-10 - Transmitter battery: 1 x 12V / 23A battery (included) - Receiver battery: 2 x AAA batteries (not included) - Max. distance: 30m (open area) - Frequency: 433MHz - Frequency Channel: 16 - With 2 LED indicators - Package includes: - 1 x Transmitter - 1 x Receiver (17cm-cable) - 1 x Battery - 1 x English / Chinese user manual