Quick overview from the supplier:
Sono 5.1 Universal Speaker Brackets, White, Reflecta
https://reflecta.de/en/wall-mounts/212-reflecta-sono-51-universal-speaker-brackets-white.html
Wall Or Ceiling Satellite Speaker Mount
Compatible with Home Theater Satellite Speakers with One Threaded Mounting Hole, Two Threaded Mounting Holes or Keyhole Mounting Systems
The Sono 5.1 mount is an adjustable speaker wall/ceiling mount for satellite speakers up to 3.5 kg. It is an ideal mounting solution for speakers with dual threaded inserts spacing from 52.5mm to 67.5mm. When fully stretched, it puts speakers 142mm from the wall/ ceiling to give large space for easier installation and adjustment. ±90° adjustment and 360° rotation at three joints are available for most flexibility to deliver ideal sound conditions
Max. loading weight: 3.5 kg
Tilt: +/-90°
Rotation: 360°
Profile: 142 mm
Material: Plastic
Dimensions: 142 x 86 x 45 mm
Scope of delivery: 5x mount, mounting material, manual
