Portable Bluetooth Speaker White Shark GBT-630 DAMARU Black, wireless audio, rechargeable battery

White Shark GBT-630 DAMARU Black is a portable Bluetooth speaker designed for mobile and home audio use. It delivers up to 30 W RMS output with a 50 Hz–20 kHz frequency range and a signal-to-noise ratio ≥91 dB. The speaker uses a 2.75" + 4" driver combination, Dual-Core DSP processing and Four-Way DRC technology to reduce unwanted noise and provide stable, balanced playback. A built-in 7.4 V / 2000 mAh rechargeable Li-ion battery enables up to 6 hours of playtime at 60% volume, and RGB LED lighting adds visual effects. Connectivity options include Bluetooth, AUX, USB, Optical and MIC, while the Broadcast function allows linking more than two compatible speakers for expanded sound coverage.

Advantages

The DAMARU speaker combines compact design and durable MDF + ABS construction with audio technologies aimed at clear and refined sound reproduction. Dual-Core DSP and Four-Way DRC help manage distortion and background noise, while the 30 W RMS output provides sufficient volume for small gatherings. Multiple input options and hands-free call support increase versatility for different sources and situations. Rechargeable battery operation and a Bluetooth range up to 10 m enable portable use for travel, outdoor activities or rooms without continuous power access.

Suitable for

• Portable listening during travel, picnics or outdoor gatherings
• Small home parties, kitchen or living room audio
• Watching videos or streaming music from smartphones and tablets
• Hands-free calls and microphone-enabled uses

When it may not be suitable

The White Shark GBT-630 DAMARU is not intended as a high-power professional PA system and may not deliver the output or low-frequency extension required for very large venues or outdoor events with high audience counts. Battery life of up to 6 hours at 60% volume means extended use without charging will be limited; for continuous long-duration events a mains-powered solution is preferable.

Key specifications

• Output power: 30 W RMS
• Frequency response: 50 Hz – 20 kHz
• Signal-to-noise ratio: ≥91 dB
• Drivers: 2.75" + 4" driver combination
• Audio processing: Dual-Core DSP, Four-Way DRC
• Battery: 7.4 V / 2000 mAh Li-ion, up to 6 hours at 60% volume
• Connectivity: Bluetooth (up to 10 m), AUX, USB, Optical, MIC
• Extra features: RGB LED lighting, Broadcast function for multi-speaker linking
• Housing: MDF + ABS plastic

How to use

Charge the internal battery fully before first use. Power on the speaker and enable Bluetooth on the source device to pair within the 10 m range; alternative inputs such as AUX, USB or Optical can be used by connecting the appropriate cable. Adjust volume and playback using the speaker controls or the source device. Use the Broadcast function to link multiple compatible speakers for synchronized playback, and connect an external microphone when microphone input is needed. Recharge the speaker via the provided charging port when battery level is low.

What to consider before purchase

• Expected usage time: battery provides up to 6 hours at medium volume
• Required output level: suitable for small to medium-sized spaces, not large outdoor events
• Connectivity needs: check for required inputs (Bluetooth, AUX, USB, Optical, MIC)
• Portability vs. durability: MDF + ABS housing balances weight and robustness

Usage recommendations

For best sound quality, place the speaker on a stable surface and avoid obstructing the drivers. Use mid-level volumes for longer battery life and enable the Broadcast feature when covering larger areas with additional speakers. Keep the speaker away from direct moisture and charge regularly to maintain battery health.