For most dogs, it needs 7 to 14 days to take effect; for few dogs, it needs 4 to 6 weeks to take effect; for very few dogs, it needs longer time to take effect
Description:
Power: 2 / 3 AA battery
Dimensions: 80 x 48 x 43 mm
Adjustable strap: approx. 25 - 50 cm
Larger discount for large oders.
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