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Color: red
Material: ABS
Size: about 17.5 3.5 2.5 cm; 12 4.5 2.5 cm.
Package size: about 28.5 15 4.7 cm
Working voltage: 9V laminated cell
Working current: Transmitter 10mA, Receiver30mA.
Signal transmission format: multi-frequency pulse
Signal output level: 8Vp-p
Signal transmission distance: 3km
Working temperature: -20-50; Storage temperature: -20-50.
Audio signal: mono audio frequency and dual audio frequency
1 Transmitter
1 Receiver
1 Earphone
1 Network cable
1 User manual
2 Battery
1 Tool bag
In original package
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