Designed to work exclusively with the bowens gemini classic r and pro flash heads the pulsar tx and trigger card kit enables you to operate the flash without the need for trailing sync cables the pulsar tx fits onto a standard camera hotshoe sonyminolta will require an adapter and locks into place with a unique click lock removing the risk of lost connections when the camera is switched from landscape to portrait powered by a single cr2032 battery the pulsar tx has a maximum range of 25m