The indicator light will turn green after power is on, and the indicator light will be off in standby mode when there is no dog barking. ⭐𝟯 𝗠𝗼𝗱𝗲𝘀 𝗗𝗼𝗴 𝗧𝗿𝗮𝗶𝗻𝗶𝗻𝗴 𝗗𝗲𝘃𝗶𝗰𝗲 𝗙𝗶𝘁 𝗳𝗼𝗿 𝗠𝗼𝘀𝘁 𝗗𝗼𝗴𝘀: The new ultrasonic barking device is designed with two holes to emit ultrasonic waves, which can emit direct-frequency and variable-frequency ultrasonic waves.
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