Portable Electronic Mosquito Repeller, Ultrasonic Repellent Wristband(Pink)The product is shipped based on the color or size of the main image of the product page.Colour:pinkCan be used as a BRACELET, to protect you in any activity, as a PORTABLE DEVICE, left on top of the table during dinner or worn as a CLIP. Wristband made from HYPOALLERGENIC SILICONE treated.Physical Drive: This product uses a microcomputer sound wave frequency that can be 360 degrees around, emitting sound waves, electromagnetic waves, bionic waves, etc. that interfere with the mosquitos auditory system and nervous system to interfere with stimulation and cause anxiety and escape.Structural Design: Realize life waterproof, wash hands, rain, and the bracelet will not be damaged.Portable: charging life, usb charging, say goodbye to frequent charging.