SUPVOX Tv Projector 5 Pairs 3D Viewing Glasses for Movies Game Ultra-Light 3D Glasses Movie Polarizer for Theater Screens Computer Monitors Polarized Glasses June2023_cocoonwix The angle adjustment clamp’s interlocking

The angle adjustment clamp’s interlocking teeth securely locks the boom angle in place while allowing 270 degrees of rotationfor perfect placement

And it has noise reduction design

There is 4cm height slight adjustment on the tube to fit alto / tenor saxophone

Delivers a perfect picture and sound

SUPVOX Tv Projector 5 Pairs 3D Viewing Glasses for Movies Game Ultra-Light 3D Glasses Movie Polarizer for Theater Screens Computer Monitors Polarized Glasses June2023_cocoonwix The angle adjustment clamp’s interlockingSUPVOX Tv Projector 5 Pairs 3D Viewing Glasses for Movies Game Ultra Light 3D Glasses Movie Polarizer for Theater Screens Computer Monitors Polarized Glasses 5 Pairs 3D Viewing glasses for movies Game ultra light 3d Glasses Movie polarizer for Theater Screens Computer Monitors Features: Color: Black. Frame Material : ABS plastic. Size: 15. 00X 15. 50X4. 70cm 5. 89X6. 09X1. 85in Type: Passive The 3D glasses are compatible with all kinds of passive 3D