DOSS
DOSS SoundBox Pro+ P400 (Waterproof Bluetooth Speaker)
Last updated September 11, 2026
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A step-up waterproof portable speaker with IPX5 protection, stereo pairing and up to 24 hours of playtime — the current-gen SoundBox Pro+.
Best for
Listeners who want longer battery life and a more powerful, weatherproof speaker for trips and outdoors.
Overview
The DOSS SoundBox Pro+ P400 is the current-generation step-up from the SoundBox Pro, with an IPX5 waterproof design and up to 24 hours of playtime on a charge. It supports wireless stereo pairing and is built for outdoor and travel use. It slots between the everyday SoundBox Pro and the larger party models in the DOSS range.
The good
- IPX5 waterproof design for outdoor use
- Up to 24 hours of playtime per charge
- Wireless stereo pairing
- Current-gen step-up from the SoundBox Pro
Specifications
- Water resistance
- IPX5
- Playtime
- Up to 24 hours
- Connectivity
- Bluetooth
- Stereo pairing
- Yes
FAQs
How long does the battery last?
DOSS rates the SoundBox Pro+ P400 at up to 24 hours of playtime per charge, depending on volume.
Is it suitable for outdoor use?
Yes — it has an IPX5 waterproof rating, so it handles splashes and light rain outdoors.
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