The max working current: emitter: <=10mA; Receiver: <=30mA .
Signal output electric status: 8Vp-p .
Signal transmission format: multi-frequency impulse .
Distance of signal transmission: >=3km.
Power: DC 9V battery (NOT included)
Battery life: 50 hours continuously
Material: ABS plastic
Appearance dimension: 175*42*27mm(receiver); 126*49*34 (emitter).
Color: Orange (as shown in the picture)
The batteries are NOT inclued, please ignore the wrong information of batteries in the manual
2. 5% discount on orders over $20.
3. All products are sold 100% authentic.
4. 48 hours delivery, 5-10 working days can be delivered.
5. Free 30-day return and 18-month warranty.
6. Note: If you need to purchase multiple pieces or cooperate, please contact us in advance.