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Yellow zinc-alloy speaker with angular mecha styling and built-in handle

GravaStar

GravaStar Supernova portable speaker 25 W Bluetooth 5.3 Yellow

SKU CH-R8ZN-NJ3KF

A 25 W portable Bluetooth 5.3 speaker with 24-hour playtime, stereo pairing and built-in lighting

  • Product colorYellow
  • Immersive stereo sound crafted by a master acoustician
  • 25 W output with 30 W volume booster for distortion‑free peaks
  • Bluetooth 5.3 and AUX input for flexible connectivity
  • Three lighting modes with eight colours plus a built‑in handle
  • Up to 24 hours playtime for all‑day listening

Mecha-inspired portable speaker

The GravaStar Supernova is a zinc-alloy portable speaker finished in yellow with a distinctive mecha-inspired design. It delivers 25 W of audio output and includes a built-in handle for easy carrying. Bluetooth 5.3 provides wireless streaming, and three lighting modes with eight colours add visual flair. The speaker functions as both a Bluetooth audio device and a decorative lamp.

Buyers wanting long wireless playtime should look

This model suits listeners who value bold styling, integrated lighting and a rugged metal build for indoor or outdoor gatherings. It supports true wireless stereo pairing when two units are linked. Users who require extended battery life beyond the rated 9 hours, or who need a speaker without illuminated effects, should consider other options.

25 W output and 9-hour battery define the limits

The single specification that decides suitability is the 25 W power rating combined with a 9-hour playtime claim. Buyers needing higher continuous output or all-day wireless runtime will find those figures restrictive. The 30 W volume booster AMP mentioned in promotional material is not a guaranteed continuous power figure.

How it compares

Measured against everything we stock in Bluetooth & Party Speakers, at today’s prices. Recalculated every night.

Price $171.99
Pricier than about 90% of the 862 comparable items (median $39.99).

Specifications

Product
Product colorYellow

Questions about this item

How loud does the 25 W output actually get in a room?

The 25 W amplifier drives the speaker to high volume without distortion, suitable for indoor gatherings or outdoor spaces like a beach or backyard.

What does Bluetooth 5.3 change for daily use?

Bluetooth 5.3 provides a stable wireless link for streaming audio from phones or tablets and supports the speaker’s stereo pairing feature.

How does the handle and shape affect where I can put it?

A built-in handle makes it easy to carry, and the triangular body can sit flat or stand upright on any level surface.

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