PRODUCT DESCRIPTION MATERIAL: Made of ABS material, sleek skin plastic, safe to use COLOR: Silver NOISE: Less than 40 db LENGTH: 93mm x 20mm x 20mm (3.7 in x 0.79 in x 0.79 in)Power supply: 1 x AAA batteries(Not Included)Applicable to a variety of parts, neck, back, arm, and so on. Waterproof allows for use in the bathtub, swimming pool, beach. Easy cleaning with soap water How to Use1.Simple one press to turn it on, long press 3-4 seconds to turn it off.2.Change mode every time you press the button ( 10 modes) 3.Make sure battery and cap in right position.
