The Gloworm TX (BT) remote to control your bluetooth-capable Gloworm X2, X2 Adventure, XS or XSV (G2.0). This is a factory replacement for those that have lost or damaged their current remote. The TX (BT) can control one light or multiple lights in any combination. The TX has 2 buttons, A and B In the most basic setup, one light is paired to one button, either A or B. Multiple lights can be paired to the same button at the same time, resulting in lights operating simultaneously. Alternatively, buttons A and B can be paired to different lights, providing independent control of each light. NOTE G2.0 TX is not compatible with G1.0 lights