Description
The Knightsbridge CS9905BCG combines a 13A switched socket, a built-in Bluetooth speaker and two USB charging ports (shared 5V 2.4A output) behind a single brushed chrome faceplate with a grey insert. The speaker connects wirelessly to phones, tablets and Bluetooth-enabled smart assistants, turning the socket into an in-wall audio point without needing separate speaker wiring.
Designed for bedrooms, kitchens, hotel rooms and home offices where audio streaming is useful but wall space for separate speakers is limited, the socket fits a standard 25mm back box depth. The Bluetooth pairing button and status indicator sit on the faceplate next to the USB ports, and the speaker grille occupies the right-hand section of the plate. The ErP-ready standby mode cuts power consumption when the speaker is switched off, complying with energy efficiency regulations for hospitality and domestic installations.
The brushed chrome finish over 430 stainless steel provides a mid-tone metallic surface that resists fingerprints better than polished chrome, and the grey insert behind the faceplate conceals the back of the mounting frame. The speaker output is suitable for background audio — podcasts, radio, light music — rather than high-fidelity listening. The dual USB ports allow simultaneous charging of two devices while the 13A outlet remains available for a mains appliance.
The socket complies with EMC, LVD and RED standards, covering electromagnetic compatibility, low-voltage directive and radio equipment directive requirements. Installation requires a minimum 25mm back box depth, and Knightsbridge recommends using certified charging cables to meet the full 2.4A shared output specification.
Specification
| Height |
89mm |
| Width |
149.3mm |
| Depth |
31.4mm |
| Projection |
15.7mm |
| Recessed Depth |
15.7mm |
| Min. Mounting Box Depth |
25mmmm |
| Plate Depth |
10.5mm |
| Construction |
430 Stainless Steel |
| Finish |
Brushed Chrome |
| IP Rating |
IP20 |
| Primary Voltage |
230V 50Hz |
| Earth Terminal |
Yes |
| Terminal |
Screw |
| Warranty |
2 Year Guarantee |
Downloads
Product Specification Sheet
Frequently Asked
How does the Bluetooth speaker connect?
Press the pairing button on the faceplate to make the socket discoverable. The speaker appears in your device's Bluetooth menu as a standard audio output. Once paired, audio streams wirelessly from phones, tablets or smart assistants. The speaker automatically reconnects to previously paired devices when they come within range.
What's the speaker audio quality like?
The built-in speaker is designed for background audio — podcasts, talk radio, light music — rather than high-fidelity playback. The speaker sits behind a perforated grille on the faceplate and provides clear vocal reproduction at moderate volumes suitable for a bedroom or small office.
What's the USB charging output?
The two USB ports share a combined 5V 2.4A output. If one device is connected, it receives the full 2.4A. If two devices are connected, the output divides between them. Use certified charging cables to achieve the full output specification.
Can the speaker and socket be used independently?
Yes. The Bluetooth speaker has its own pairing control and can be switched on or off independently of the 13A socket. The ErP standby mode ensures the speaker draws minimal power when not actively streaming audio.