CKB Ltd Signal Pod V2 Bicycle Indicator System Be safer on the road with the IGGI Signal Pod indicator device that is a wireless light up signalling system that allows cyclists to focus on the road while signalling and turning on the road. Using powerful 2. 5v LED that has a flashing function, left and right indication and extra flashing light hazard functions. Wireless design - Radio frequency 433. 98MHz with a range of 3 metres Mounting is the bracket is simple and will fit bike set shafts 27. 2mm to 31. 6mm Instructions are included Size: 16 x 11 x 6. 5cm Batteries: Signal Pod: 3 x AA (not included). / Remote: 1 X CR2032 (included). Helpful Tip: If you require using two Signal Pod Kits on your bike, they will run off a single remote control provided the two Signal Pods are mounted at the same height.