7.1 x 2.8 x 5.9 inches

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.Ajustable Headband: the ajustable headband can let you get a perfect fit for your head shape.with the soft cushion protein earmuff,it is not only let you feel very comfortable,but also let you minimize tiredness,
Lightweight Design:a lightweight design fot kids age3 and up.it is pretty light but sturdy and comfortable on the ears. it stay put and block outside noise.