---
product_id: 731911943
title: "Supernova Bluetooth Wireless Portable Speaker, 25W Sound, Bluetooth 5.3, Strong Bass, 9 Hours Playtime, RGB Light, Audio HD and USB-C Charging, Black"
brand: "gravastar"
price: "€ 1040.79"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/731911943-supernova-bluetooth-wireless-portable-speaker-25w-sound-bluetooth-5-3
store_origin: HR
region: Croatia
---

# Bluetooth 5.3 seamless connection 25W powerful bass output 9 hours continuous playback Supernova Bluetooth Wireless Portable Speaker, 25W Sound, Bluetooth 5.3, Strong Bass, 9 Hours Playtime, RGB Light, Audio HD and USB-C Charging, Black

**Brand:** gravastar
**Price:** € 1040.79
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your soundscape with the Supernova—where style meets stellar audio!

## Quick Answers

- **What is this?** Supernova Bluetooth Wireless Portable Speaker, 25W Sound, Bluetooth 5.3, Strong Bass, 9 Hours Playtime, RGB Light, Audio HD and USB-C Charging, Black by gravastar
- **How much does it cost?** € 1040.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/731911943-supernova-bluetooth-wireless-portable-speaker-25w-sound-bluetooth-5-3)

## Best For

- gravastar enthusiasts

## Why This Product

- Trusted gravastar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **RGB Ambiance Lighting:** Customize your space with 8 vibrant colors to match your mood or event.
- • **Next-Gen Bluetooth 5.3:** Ultra-stable, low-latency wireless streaming up to 15m for uninterrupted vibes.
- • **Immersive 25W Bass Power:** Feel every beat with room-filling, dynamic bass that commands attention.
- • **Futuristic Zinc Alloy Build:** Sleek, shock-absorbing design that turns heads and lasts.
- • **True Wireless Stereo Pairing:** Double the sound, double the impact—pair two units for a cinematic audio experience.

## Overview

The GravaStar Supernova is a portable Bluetooth 5.3 speaker featuring a durable zinc alloy body with a unique sci-fi design. It delivers powerful 25W bass with DSP-enhanced immersive sound, offers up to 9 hours of playback, and includes customizable RGB lighting. True Wireless Stereo pairing and a 15m wireless range make it perfect for on-the-go audiophiles seeking both style and substance.

## Description

desertcart.co.jp: GravaStar Supernova Bluetooth Wireless Portable Speaker, 25W Sound, Bluetooth 5.3, Strong Bass, 9 Hours Playtime, RGB Light, Audio HD and USB-C Charging, Black : Electronics

Review: デザインに一目惚れして購入しました。サイバーパンク風の雰囲気がとてもかっこよく、持っているだけで気分が上がります。フックがついているので、アウトドアやキャンプでも使いやすいのが魅力です。実用性とデザイン性の両方を兼ね備えていて、大満足です。
Review: ヴィジュアルのみで購入。 音質的にはなんかイマイチ感はあるけど別に悪いものでも無い。 ただ波音や雨の音をうっすら流しながら寝る時に使ってると知ってて再生する時と違って、すっか忘れてる寝起きに何の音が鳴ってるのかと思うぐらい最初判別出来ない感じなので環境音の再現性は低いとは思う。

## Features

- 【EYE-CATCHING DESIGN】Sturdy body made of zinc alloy for a stylish yet shimmery look. It has an eye-catching design yet is durable enough to absorb impact. (Detailed Design) 3 arms resemble extraterrestrial life forms. Lights are also included in the arm, and can be combined with the lantern to bring out the world of science fiction
- 【More Immersive Sound Effect】"Supernova Bluetooth Speaker" is powered by DSP acoustic technology to provide powerful and fidelity audio. Adaptable acoustic technology creates immersive audio that brings music to life. 【ROOM ENRIVING POWERFUL BASS】High performance speakers deliver deep, impactful bass. With 25W output, it produces a rich, dynamic bass range that allows you to experience powerful bass that spreads room full of volume
- (Experience Visual Immersion) The light comes in 8 colors of white, red, orange, yellow, green, light blue, blue and pink, creating a perfect ambiance for both indoor and outdoor activities such as a gaming room, camping, etc. Lantern-like handle: Combines the ultra-futuristic sci-fi design with the shape of a lantern. The handle makes it convenient to carry around and can be used anytime and anywhere
- Equipped with Bluetooth 5.3: The latest Bluetooth 5.3 standard has greatly improved transmission speed, stability and power saving performance. Provides a more seamless and high quality wireless connection and supports up to 15m transmission distance. The speaker body is designed with a handle for easy carrying. 9 Hours of Playback: Up to 9 hours of playback at 60% light on and 60% volume and up to 28 hours of playback at 60% light off
- Simultaneous pairing of 2 devices: SUPERNOVA allows you to enjoy dual stereo sound with TWS (True Wireless Stereo). Pair two SUPERNOVA and use it as TWS speakers. Simultaneous playback on L and R channel, so you can enjoy more stereo sound

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BZYHX9RY |
| Additional Features | LED Light, Stereo Pairing, Waterproof |
| Age Range Description | Adult |
| Amazon Bestseller | #227,038 in Electronics ( See Top 100 in Electronics ) #1,070 in Portable Bluetooth Speakers |
| Antenna Location | For music players, smartphones, tablets, televisions, computers |
| Audio Driver Size | 7.62 Centimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Mono |
| Battery Average Life | 9 Hours |
| Battery Capacity | 3350 Milliamp Hours |
| Battery Charge Time | 3 Hours |
| Bluetooth Range | 20 Meters |
| Brand | GravaStar |
| Built-In Media | Speaker |
| Color | Black |
| Compatible Devices | Music Players, Smartphones, Tablets, TVs, Computers |
| Connectivity Protocol | AUX, Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | Touch |
| Controller Type | Button |
| Customer Package Type | FFP |
| Customer Reviews | 4.5 4.5 out of 5 stars (127) |
| Enclosure Material | Zinc Alloy |
| Frequency Response | 20.2 Hz |
| Global Trade Identification Number | 06972448921060 |
| Impedance | 4 Ohms |
| Is Electric | Yes |
| Is Waterproof | False |
| Item Dimensions D x W x H | 61D x 31W x 43H cm |
| Item Weight | 200 Grams |
| MP3 player | No |
| Manufacturer | 深セン市拙野创意有限公司 |
| Maximum Range | 20 Meters |
| Model Name | Supernova |
| Model Number | G5 |
| Mounting Type | Freestanding |
| Number of Audio Channels | 2.0 |
| Number of Batteries | 1 Lithium Metal batteries required. (included) |
| Number of Items | 1 |
| Power Source | Battery Powered, Power cord type |
| Signal-to-Noise Ratio | 85.98 dB |
| Speaker Maximum Output Power | 25 Watts |
| Speaker Size | 3 Inches |
| Speaker Type | Outdoor |
| Specific Uses For Product | Music Player, Smartphone and Tablet, TV, Computer, Picnic, Beach, Long Excursion, Camping, Outdoor |
| Subwoofer Connectivity Technology | Wireless |
| Subwoofer Diameter | 100 Millimeters |
| Tweeter Diameter | 7.62 Centimeters |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 3 Inches |

## Product Details

- **Audio Output Mode:** Mono
- **Brand:** GravaStar
- **Connectivity Technology:** Bluetooth
- **Frequency Response:** 20.2 Hz
- **Speaker Maximum Output Power:** 25 Watts

## Images

![Supernova Bluetooth Wireless Portable Speaker, 25W Sound, Bluetooth 5.3, Strong Bass, 9 Hours Playtime, RGB Light, Audio HD and USB-C Charging, Black - Image 1](https://m.media-amazon.com/images/I/61DnfCR3PVL.jpg)

## Questions & Answers

**Q: Does this support stereo playback?**
A: Yes, we can.If you install two of these wireless speakers, you can play the L and R separately at the same time and enjoy dual stereo sound.

**Q: What do TWS connections?**
A: Prepare 2 and turn on the 2 unconnected devices, long press the volume + volume of the 2 speakers to enter pairing mode.The main speaker is the left channel and the sub-speaker is the right channel.Voice guidance plays "Network connected" when connected.

**Q: I want to know the time of continuous playback.**
A: Depending on the environment of use, it will last 9 hours when playback at 60% light on + volume 28 hours when light off + 60% volume.

**Q: What type of charging cable?**
A: USB-C type.

**Q: Does it acquire a technical compliance mark?**
A: Yes.in the world.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***ー on August 25, 2025*

デザインに一目惚れして購入しました。サイバーパンク風の雰囲気がとてもかっこよく、持っているだけで気分が上がります。フックがついているので、アウトドアやキャンプでも使いやすいのが魅力です。実用性とデザイン性の両方を兼ね備えていて、大満足です。

### ⭐⭐⭐⭐ Review
*by M***O on August 18, 2025*

ヴィジュアルのみで購入。 音質的にはなんかイマイチ感はあるけど別に悪いものでも無い。 ただ波音や雨の音をうっすら流しながら寝る時に使ってると知ってて再生する時と違って、すっか忘れてる寝起きに何の音が鳴ってるのかと思うぐらい最初判別出来ない感じなので環境音の再現性は低いとは思う。

### ⭐⭐⭐⭐ Review
*by サ***コ on October 22, 2024*

自分は、性能とか音質でなく、デザインで購入しました。同じシリーズで、丸い方も購入してます。 デザインは最高でしたが、配送の段ボールは無傷だったものの、商品の箱の角がつぶれてました。以前の注文もつぶれてました。 自分は気にしませんが、コレクションとして箱も大事な人にはガッカリかなぁと思います。

## Frequently Bought Together

- GravaStar Supernova Portable Bluetooth Speaker, LED Table Lamp Speaker, 9H Playtime, TWS Pairing, Wireless Speakers fo Party/Outdoor/Camping/Gifts
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- GravaStar Power Strip for Alpha65 65W Charger and Delta35 35W Charger, 5 ft Extension Cord Flat Plug Surge Protector, Indoor Desk Charging Station for Home Office Dorm

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**Shop now:** [https://www.desertcart.hr/products/731911943-supernova-bluetooth-wireless-portable-speaker-25w-sound-bluetooth-5-3](https://www.desertcart.hr/products/731911943-supernova-bluetooth-wireless-portable-speaker-25w-sound-bluetooth-5-3)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-30*