GravaStar Mars Pro Bluetooth Speaker 20W, Yellow

The GravaStar Mars Pro is a portable Bluetooth speaker with a distinctive sci‑fi / robotic look and integrated RGB lighting. It features a dual speaker system with a passive bass radiator, making it suitable as a desktop or portable speaker for music, video and gaming — aimed at users who want a bold design and pronounced low end.

The speaker delivers 20 W output, connects via Bluetooth 5.0, and offers six RGB lighting modes controllable from a top touch panel; the tripod legs fold out for angled placement. A built‑in rechargeable battery provides around 15 hours of playback in typical use; charging is via USB‑C. Mars Pro also supports true wireless stereo (pairing two units).

Specifications

• Output power: 20 W (dual speaker system)
• Bluetooth: Bluetooth 5.0
• Battery: 2000 mAh × 4 (total 8000 mAh) — per user manual
• Playback time: Up to ~15 hours (typical use; FAQ sometimes cites up to 20 hours)
• Charging: USB‑C input 5 V / 2 A
• Passive radiator: Yes (for enhanced bass)
• Lighting: RGB, 6 modes (static/dynamic/music sync)
• TWS: True Wireless Stereo (pair two speakers)
• Enclosure material: Zinc alloy (matte coating)
• Dimensions (height): 180.09 mm (≈7.09 in) per speaker
• Weight: ≈1.3 kg (with batteries)