Electronic Fishing Alerts Bite Alarm LED Wireless Fishing Alarm Digital Fishing Receiver Sound Alert Kits                Transmitter: Special varnish decorations. Low battery signal. LED alarming signals with high output speaker. High visibility LED latching about 15 seconds. Aluminum removable snag bar. Warning LED light with color of Red,Blue,Yellow,Green. Adjustable Volume, Tone button.     Protective coated electronics. Separate battery compartment. Work with a 9V battery(not included).     Receiver: Over 100m transmission range. 256 variable code enough to prevent interference from another angler. Special varnish decorations.     Low battery signal. On/off, adjustable Volume, Vibration button. 4 colors LED lights to match 4 alarms. Protective coated electronics.     Separate battery compartment. Black antenna. Working with 3 AAA batteries(not included).          Receiver Size: 8.5 x 5 x 2.5cm / 3.3 x 2 x 1in     Colour: black     Material: ABS+electronic          Package Contents:     1 x transmitter     4 x Receiver (light red, yellow, blue and green)     1 x Storage box     1 x English manual          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.