Features:
1) Display type: pet cat display
2) Sensor number: 2 - 8pcs
3) Sensor color: black, red, white, silver, green, gold, orange, blue
4) Detector type: drilling or stick-on
5) 3-digital display the distance
6) Activation:
a) Front rear sensors start to work upon ignition of engine,
rear sensor is activated when reverse gear is engaged,
front sensors do not work when vehicle in reverse
b) Voice-direction of left, middle and right, and
obstacle will be shown on the display by signal
c) On backing the car, the rear sensors detect obstacles behind
the car automatically
d) Stage-by-stage sound alarm to avoid colliding; the voice could
be adjusted, with mute setting
7) Versatile detection range
8) Sensor types for optional

Specifications:
1) Working voltage: 9 ~ 27V
2) Input: 2.5W(max)
3) Beeper: 90 - 105dB
4) Working temperature: -40 ~ +80oC
5) Frequency: 40kHz
6) Best detection distance: 0.5 - 1.5m

Inner packing:
1set/box
Dimensions: 30 x 21 x 6.3cm

Outer packing:
10sets/carton
Carton dimensions: 44 x 32 x 36cm