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Black rectangular portable speaker with smooth finish and LED light strip

Doss SoundBox Pro 20W Bluetooth 5.3 Portable Speaker Black

SKU CH-K547-Y0703

A 20 W stereo portable speaker with Bluetooth 5.3, dual passive radiators, 20-hour battery life and wireless stereo pairing for a second unit

  • NameSoundBox Pro
  • ColorBlack
  • Speaker TypeSingle Speaker
  • Connectivitywireless
  • Input Portswireless
  • Operating Range10 meters
  • 20 W stereo sound from dual drivers and passive radiators
  • Bluetooth 5.3 wireless streaming up to 10 metres range
  • Pair two speakers for true wireless stereo and double volume
  • Up to 20 hours playtime from rechargeable battery
  • Lightweight 0.63 kg design with beat-driven LED lights

20 W Portable Bluetooth Speaker

The Doss SoundBox Pro is a 20 W portable speaker built for listeners who want stereo sound from a single wireless unit. It uses dual full-range drivers and dual passive radiators with active amplification and DSP processing to deliver bass, mids and highs without distortion at maximum volume. The speaker is aimed at casual indoor use and outdoor gatherings where a cable-free music source is preferred.

Bluetooth 5.3 Wireless Setup

Pairing is handled entirely through Bluetooth 5.3, which is backward compatible and provides a stable connection up to 10 meters or 66 feet. No SD card slot or 3.5 mm AUX input is present, so all playback must come from a Bluetooth source. The 2026 upgraded model removes those legacy ports to improve internal acoustics and waterproof sealing, meaning wired connections or local file playback are not possible.

True Wireless Stereo Pairing Check

Two SoundBox Pro units can be paired to one device for true stereo output and doubled volume with synchronised light effects. Before ordering, confirm that your source device supports simultaneous dual-speaker Bluetooth streaming, as older phones or laptops may only connect to one speaker at a time. Battery life reaches up to 20 hours at 50 % volume with extra bass and lights off, so verify that your typical listening level matches this condition.

Highlights

  • 20 W stereo sound from dual drivers and passive radiators
  • Bluetooth 5.3 wireless streaming up to 10 metres range
  • Pair two speakers for true wireless stereo and double volume
  • Up to 20 hours playtime from rechargeable battery
  • Lightweight 0.63 kg design with beat-driven LED lights

Specifications

BrandDoss
NameSoundBox Pro
ModelSoundBox Pro
Part NumberSoundBox Pro
ColorBlack
Speaker TypeSingle Speaker
Connectivitywireless
Input Portswireless
Operating Range10 meters
Speaker Configuration2.0
Total Power20 watts
Amplification TypeActive
Signal to Noise Ratio (SNR)55 decibels
Dimensions7.37 in x 19.56 in x 7.62 in
Weight0.63 kilograms

Questions about this item

How can I verify the speaker is performing correctly after pairing it with my phone?

The speaker uses Bluetooth 5.3 with a 10-meter operating range; once paired, play audio and confirm stereo output from the dual full-range drivers and passive radiators at up to 20 watts total power.

What comes in the box and what must I purchase separately?

The package includes the SoundBox Pro speaker in black; no SD card slot or 3.5 mm AUX port is present, so all playback is wireless via Bluetooth 5.3 and no cables are required.

Which version should I choose for the best wireless stability and waterproof sealing?

The 2026 upgraded model uses Bluetooth 5.3 only, removing the SD card slot and 3.5 mm AUX port to improve internal acoustics and waterproof sealing while maintaining backward compatibility.

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