... outside sounds and frequencies.The product can automatically detects battery energy and mist energy, and can start warning ... in a shortage for battery energy or mist energy.The mist-spray bark- ... dogs, quite safe.Low power consumption, average life battery to 2-4 months•lemon mist liquid is ... bottle, G.W.:85g, 3 oz)1 x 6V alkaline battery1 x instruction manual1 x Adjustable nylon ...