KB Sound Basic BTT Outdoor Bluetooth Speaker System with 4" Speakers

Colour - White
Shop All KB Sound

The KB Sound BASIC BTT is a no nonsense Bluetooth ceiling speaker system that allows you to easily stream your favourite music via Bluetooth and fill your room with high quality sound from discreet in-ceiling speakers.

This system is perfect for adding music to your patio, garage, garden room or structure such as a hot tub or garden bar.*


  • Wireless Music: Stream any internet or stored music sources such as Spotify, TuneIN etc.
  • Voice Control: Works With Amazon Alexa & Google Assistant (via Bluetooth)
  • Easy To Use: Simply pair any Bluetooth smartphone, tablet or computer. No apps required.
  • Easy To Install: Comes with plug & play lead, simply install to standard electrical socket or wire into the lighting circuit* - Amplifier must be installed in dry indoor location or in suitable IP rated external box.


You'll be able to stream your favourite music without wires for room filling sound.

Listen to Spotify in the kitchen, catch up on your favourite pod casts in the bathroom and get the party started in the garden with our garden version.


The KB Sound BASIC BTT Bluetooth Ceiling Speaker System works seamlessly with Amazon Alexa and Google Assistant*.

Simply pair an Echo Input or Google Home Mini to the amplifier via Bluetooth and your system will remain on ready to play at your command.

You can then utilise the multiroom audio capabilities of the voice control system for whole home music without breaking the bank.


The BH4 outdoor speakers are fully water resistant and can be left out all year round in all weather conditions.

Enjoy music at your BBQ's, listen to the radio whilst gardening and you can even chill out in the winter!

You'll be surprised by the high quality sound output from them and at less than 200mm tall they'll fit discreetly into your patio or garden.

* Requires an Amazon Echo Input or Echo device for Alexa and requires a Google Home Mini for Google Assistant. Devices link via Bluetooth. Sold separately.


  • 1 x KB Sound BASIC BTT Bluetooth Amplifier Unit
  • 1 x UK Power Supply
  • 10m x 2 Core Outdoor Speaker Cable
  • 1 x Pair Of Adastra BH4 Outdoor Speakers
  • 1 x Instruction Manual


2 Years


  • Frequency Response: 30HZ-18KHZ (ISM Band)
  • Power Supply: 100-240VAC, 50/60HZ
  • Input Sensitivity: > -81dBm@0.1% BER
  • Output Power (Rated): 2 x 10W Into 8Ohms, 2 x 15W into 4Ohms
  • Bluetooth Version: V4.1
  • Bluetooth Distance: 10m
  • Dimensions: 159.5x54x35.5mm
  • Warranty: 1 Year


  • Impedance: 8 Ohms
  • Power handling: max. 60W
  • Power handling: rms 30W
  • Frequency response: 100Hz - 20kHz
  • LF driver: 100mmØ (4")
  • HF driver: 13mmØ (0.5")
  • Dispersion angle: 120°
  • Sensitivity: 89dB
  • IP rating: IP44
  • Dimensions (each): 195 x 127 x 126mm
  • Weight (each): 1.23kg

Customer Reviews