SmallRig Mobile Dual Handheld Kit for iPhone 17 Pro 5540 is a professional dual handheld shooting solution designed specifically for iPhone 17 Pro, facilitating professional-level video recording, live streaming, and short film production. This comprehensive kit includes a phone case, video cage, rotatable wireless control side handle, rotatable side handle, and Tpu soft bumper.In addition to providing daily protection for the phone, the case comes standard with a T-mount backplate and a 17mm threaded lens backplate for external lens mounting. The T-mount backplate can be replaced with a 67mm magnetic filter adapter (sold separately) for enhanced optical output.The phone can be mounted into the cage with its case on. The cage features multiple 1/4""-20 anti-twist threaded holes and cold shoe mounts to expand with accessories like handles, tripods, microphones, and lights. Classic quick release interfaces allow for efficient handheld or tripod setups.