The Conceptus Bite Switch is compatible with the Canon Digital Rebel, XT, XS, XSI and XTI, as well as most Canon film cameras. This switch is also compatible with the HypEye D Pro Expansion Kit.
This is a mouth-operated, totally electronic shutter release for use with any still camera with a remote shutter release jack. The Bite Switch is comprised of a durable, sealed tubular switch assembly measuring 1.5 inches long by 1/4 inch diameter, a 36 inch coaxial wire, and a 2.5mm plug with a 90 degree elbow bend. During use, the switch is placed in the mouth with the wire pointing either to the right or left. The Bite Switch is securely sealed and waterproof. Since the switch is mouth-operated, it does not interfere with grips on exits or in freefall, or with canopy deployment, control and emergency procedures.
The 2.5mm Conceptus Bite Switch is compatible with the following:
Canon EOS 550D, Canon EOS 1000D / 650D / 500D / 450D / 400D / 350D / 300D. Canon EOS Rebel T2i, T3i, T5, Canon Kiss X4, Rebel, Rebel XT, Rebel XTi, Rebel XSi, Rebel XS, Rebel T1i & Canon Powershot G10 Digital SLR Cameras, and the HypEye D Pro Expansion Kit or Photo Kit.