This fishing bite alarm set can be useful for anglers at night. It can help them get a lot of fish and have fun. Features: Good Tool for You: Wireless remote sense bite alarm kit not only has sound and light alarm while fish bites, but also send signal to over one hundred and twenty meters away, so you can walk away or have a rest carrying the receiver, not afraid to miss hooked fish. Fishing Alarm Set: Four transmitters with one receiver. Four Transmitters: LED alarming signal with high output speaker. Fixed bolt with adjustable screw and extra jack for illuminated swinger. Receiver: On/off, Volume/Vibration, Tone buttons for adjustment. Latching LED for receiving signal with antenna and high output speaker. Transmission Range: Over 120 meters transmission range. Transmitter Working Power Supply: 1 * 23A 12 volt battery (Not included). Receiver Working Power Supply: 4 * AAA batteries (Not included). Specifications: Material: ABS & Copper Color: Red, Yellow, Green, Blue Bite alarm size: 3.8 * 4.5 * 11.3cm / 1.5 * 1.8 * 4.4in Receiver size: 6.3 * 3.5 * 10cm / 2.5 * 1.4 * 3.9in Zippered case size: 32 * 21 * 5.5cm / 12.4 * 8.3 * 2.2in Package size: 34.5 * 22.5 * 6cm / 13.6 * 8.9 * 2.4in Package weight: 756g / 26.7oz Package List: 4 * Fishing Bite Alarms 1 * Receiver 1 * User's Manual(English) 1 * Case