What's in the box:

1 X Lixada Wireless Fishing Bite Alarms Set (Red), Red

This fishing bite alarm with line groove to improve sensitivity of bite and lop line, LED light on transmitter will flash when the fish swallow the bite and the receiver will give alarm in the meantime. You can adjust the tone and volume to make yourself hear so you can just walk away or have a rest over 100m away but do not need to worry about missing the hooked fishes.

Features:
Include: 1 * Receiver, 4 * Transmitter and 1 * Storage Box.

-Transmitter
Rolling LED to show setting direction.
Adjustable sensitivity, volume, tone.
256 variable codes enough to prevent interference from another angler.
LED alarming signals with high output speaker.
High visibility LEDs will flash about 40 second if fishing line is drawn.
Extra plug for swinger.
Separate battery compartment.
Powered by 1 * 23A12Vbattery (not included)

-Receiver
Approx. 100m transmission range.
4 color LEDs to match 4 transmitters.
On/off, volume +/-, vibration button.
Receiver will sound and flash when receiving signal.
Built-in automatic code repair function.
Separate battery compartment.
Powered by: 2 * AAA battery (not included)

Specification:
Style: Blue / Yellow / Red / Green / Mix color(suit)(optional)

-Transmitter
Material: ABS
Working Volt: 9V
Working Current: 30mAh
Working Frequency: 433.92MHZ
Modulate Mode: ASK
Transmission Range: <100m
Work Temperature: -30C-70C
Power: 1 * 23A12Vbattery (not included)
Size: 6.5 * 3.2 * 3.2cm / 2.5 * 1.2 * 1.2in
Net Weight: 59g / 2.0oz

-Receiver:
Material: ABS
Working Volt: 3-5V
Working Current: 30mAh
Working Frequency: 433.92MHZ
Sensitivity: -110dbm
Modulate Mode: ASK
Work Temperature: -30C-70C
Power: 2 * AAA battery (not included)
Size: 8 * 5.5 * 2.3cm / 3.1 * 2.1 * 0.9in
Net Weight: 56g / 1.9oz

Box size: 25.5 * 18.5 * 5cm / 10.0 * 7.2 * 1.9in
Package size: 27.5* 19 * 5.5cm / 10.8 * 7.4 * 2.1in
Package weight: 690g / 1.5lb

Package list:
1 * Receiver
4 * Transmitter
1 * Storage Case