No instructions. It does involve attaching a magnet, but not the attachment itself. Revain's description says it should come with an Allen key, but it doesn't.
KEiiD Bluetooth Stereo Shelf System With Retro CD Player, Speakers, FM Radio Receiver, USB, AUX, Bass/Treble EQ, Wooden CD Music Bookshelf System For Home Audio
28 Review
π΅ Oakcastle BX200 Boombox, Portable CD Player and FM Radio with Bluetooth Stereo Speakers and Multi-Connection Capability
9 Review
Gamepad GEN GAME X3 Bluetooth, black/red
23 Review
KEiiD Wooden Retro CD Player With Bluetooth, FM Radio, USB AUX Inputs, Speakers And Adjustable Bass/Treble For Home Stereo System And Boombox
27 Review