ReSound works with most passive speakers — including vintage Hi-Fi, bookshelf speakers, and DIY builds (as long as they have built-in crossovers). Just connect using speaker wire, and you're good to go.

Yes! To pair two units:

1. Turn both ReSounds on (make sure they’re not connected to any phone).

2. Press the volume button 3 times quickly on one unit.

3. After a few seconds, they’ll sync — one as Left, one as Right.

4. Connect your phone to just one via Bluetooth.

   Now you’ve got true wireless stereo.

Nope. No apps, no logins, no nonsense. Just Bluetooth and a volume knob.

ReSound delivers up to 100W of power — enough to match or beat commercial portables like SoundBoks (depending on your speaker).

It’s small, but it seriously thumps.

Up to 3 hours at full blast

Up to 20 hours at medium volume

And yes, you can play while charging

Each unit includes:

• Screw terminals for speaker wire (included)

• Charging cable (standard DC input)

We will have multiple options during launch, so they'll fit your specific needs.

Only if your speaker setup has a built-in crossover (filter).

ReSound sends full-range audio (20Hz–20kHz), so unfiltered tweeters can get damaged at high volume.

👉 Most commercial speakers already have this built-in (~95% do).

Yes — the internal battery is under 160Wh, which is within limits for most airlines’ carry-on rules.

Still, check your airline’s policy just to be safe.

Absolutely. ReSound plays while charging, so your music never has to stop.

It’s compact and portable:

• 4.3" (D) × 5.1" (W) × 2.95" (H)

• Or in metric: 11cm × 13cm × 7.5cm

  Fits in your bag. Powers a party.

• Raise speakers to ear level

• Place them near walls or corners to boost bass

• Use quality speaker wire

• Make sure your speakers aren’t blocked by furniture

Yes! By giving your old speakers new life, you're reducing electronic waste and keeping great audio gear out of landfills.