Staying behind at the hideout, Rinji and Gozu become aware of a shinobi following their tracks. At the same time, Kakashi and his team notice that the enemy is using a bat for surveillance.
with the same frequency
as a dog whistle...
بنفس تردد صفارة الكلب
a la misma frecuencia de 
un silbato para perros.
na mesma frequência que
 o apito de cachorro...