(Red, Green, Yellow and Blue). All Alarms are fitted with a 2.5mm Jack socket.Fitted with standard british 3/8 threads. Fishing line's Dropping and back with red and green LED band indicating. Require 1pcs 9V section battery. Flashing LED and Sound Alarming. Red, Green, Yellow and Blue LED's. These match the LED colours of the alarms. Waterproof and Wireless with an operating range of over 150 metres. (Light stays on receiver 20 seconds after any activity). Receiver requires 3 x AAA batteries(not include). This item is in the category "Sporting Goods\Fishing\Anglers' Equipment\Bite Alarms". The seller is "hirisi" and is located in this country: CN. This item can be shipped to United Kingdom.