Remember all these products function together on a bite indication the following happens. Alarm sounds and an indication is made on the receiver.If connected the h9pro illuminates. The smartband will vibrate and indicate which alarm has sounded, you can then use the smartband to control the headtorch. With a feature loaded app for controlling the alarms where you can adjust tone, sensitivity etc from the comfort of your bivvy and the popular 30 second mute function. Link with your other ND Deceives. B9 can link with ND bite alarms(S9/K9s/D9), TH9s(Motion Detector). The button on the B9 can turn on/off the H9(Head light). Control the H9 pro and other ND lights. Press the Button on the Band to control the H9pro. H9pro will wake up When receiving control signals from other devices(ND dongle, ND smart band, ND S9 bite alarm, ND K9s bite alarm). The item "ND Tackle Wireless S9 Bite Alarm Set&H9pro Head Torch&B9 Wrist Band Carp fishing" is in sale since Sunday, January 19, 2020. This item is in the category "Sporting Goods\Fishing\Anglers' Equipment\Bite Alarms". The seller is "newdirectiontackle" and is located in DERBY . This item can be shipped to all countries in Europe.