R4 DIY Bluetooth Radio ( Separate )

Sale price Price $139.99 Regular price Unit price  per 

CELIA & PERAH R4 is the seperate version in R3&R4 ,the separated configuration greatly enhence the immersive sound experience. You can personalize its look to suit your music style, and the customizable design allows you to understand the acoustic magic behind the superb sound quality when you build it up.

Easy and Fun

Enjoy the fun of DIY a professional speaker.Amazing audio performance comes after the efforts and persistence in every step of product making.


Various way to listen to your music 

- Bluetooth connect with mobile devices

- USB drive  play in  loop fast forward,backward 1 song by turing the knob. 

- 3.5mm Aux in audio cables provide genuine sound.

- Radio function allows you to reminisce the old times.


Smart power system

Battery level reported automatically when turned on.

Charging Time : 2.5 Hours 

Battery : 8 Hours/ 80% Volume

Charging : DC 5V 2A (USB type C: regular phone chargers )

Magic behind our sound

- Sweet Spot : Music without distortion

While 30W Class-D Amplifier  deliver no more than 16W  , less distortion will occur. This pure listening experience is our so-called "Sweet Spot", 

- Squeeze Box: Fortified Low-frequency Performance

We select the most suitable material to build the a speaker cabinet that carries a carefully-calculated port tube to match with our algorithm and produce the best bass performance.

- Live Concert : Immersive sound experience

We carefully calculated time delays and minor volume differences between the two drivers to create a surround sound. When listening to CELIA & PERAH R4, you will feel like the two drivers are much further than they actually are, giving you perfect immersive music-listening and movie-watching experiences.



2” Full Range Driver*2

Wood boards, PCB, Battery, Antenna, Knobs

Speaker cable, USB-Type C cable, Foot Pad,

Screws, Nuts, Screw washers


#Size & Weight (cm)

Speaker : (W)7.5 x (D)8.4 x (H)17.2 cm

Main Box: (W)12.5 x (D)11 x (H)5 cm

935 g



Customer Reviews
5.0 Based on 1 Reviews
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Great Sound

This is a great little system. I bought it to be used for background music in my dining room. The teak finish blends in well with the furniture but, more importantly, the sound is crisp and true. Usually, I Bluetooth to it from an iPod. I am very pleased with the set up.


Hello George, thank you for the review !