Bluetooth
From Amazon
Adastra | Bluetooth Active Ceiling Speaker Kit | 5.25" 40W
Inta Audio
Adastra BCS52S - Bluetooth Ceiling Speakers (Pair)
CommsAndSound
Bluetooth Ceiling Speakers 5.25in In-Ceiling Powered All-In-One, Adastra BCS52S
HW Audio
Adastra Bluetooth 5.25in Ceiling Speakers Set (953.164UK)