NSI-TA502 Electric Door Switch, Light ON When Open, 125/250VAC, 1-1/4" Width, 3-7/8" Height, 2" Depth auspowers_batchsix just attach the metal ring

just attach the metal ring on the back of your phone/ case following the user guide

See Measurements Image to verify that your speakers will fit in these adapters

SPECIAL DESIGN: Our cable ties are specially designed to fix your cables to the straps quickly and easily so you can spend less time worrying about cables and more time getting your work done

which has passed 8000+ bending tests to provide the best protection for your cable

NSI-TA502 Electric Door Switch, Light ON When Open, 125/250VAC, 1-1/4" Width, 3-7/8" Height, 2" Depth auspowers_batchsix just attach the metal ringNSI TA502 Electric Door Switch, Light ON When Open, 125 250VAC, 1 1 4" Width, 3 7 8" Height, 2" Depth For turning lights signals on or off when Doors are opened or closed. Ideal for closets, Dark rooms, storage areas of Walk In refrigeration. Rust resistant steel case with 4 knockouts, antique Brass plate. Box dimensions: 1 1 4". W x 3 7 8". H x 2". D. Plate dimensions: 1 1 4". W x 4". Product Features Light on when door is open Corrosion resistant