BowLift | Mini Karaoke Machine with Wireless Microphones – Portable Bluetooth Speaker for Kids Taobao_Source And it's waterproof too

And it's waterproof too

the slit is small

Secure it with a screwdriver

Width of toothbrush holder - front to back: 3" (8 cm)

BowLift | Mini Karaoke Machine with Wireless Microphones – Portable Bluetooth Speaker for Kids Taobao_Source And it's waterproof tooFun & Portable Entertainment Designed for young performers, this mini karaoke machine delivers big fun in a compact size. Its perfect for birthdays, sleepovers, or everyday sing alongs. The portable speaker connects via Bluetooth, allowing kids to enjoy music wirelessly anytime, anywhere. Wireless Microphones Included Comes complete with two wireless microphones so kids can sing solo or duet with friends and family. The mics are lightweight and easy