The Hoco BS51  is a compact, stylish, and multi-functional Bluetooth speaker designed for portability without compromising on versatility. With a design reminiscent of a gold brick, it blends bold aesthetics with practical features for both indoor and outdoor use.

Design & Build

• Shape & Size: Rectangular “gold brick” profile, compact enough to slip into a bag or carry by hand.

• Dimensions: Approximately 108 × 90 × 45 mm.

• Weight: Around 274 g, making it lightweight for daily carry.

• Housing: Durable plastic body with metallic finish accents and mesh speaker grill.

• Colors: Available in multiple shades including gold, blue, red, and black.

Connectivity

• Bluetooth Version: 5.2 for stable, low-latency, and energy-efficient wireless audio.

• Chipset: Zhongke Lanxun AB5365C, known for stable connections and low power consumption.

• Wireless Range: Up to 10 meters (open space).

• TWS (True Wireless Stereo): Pair two BS51 units for full stereo sound.

Audio Performance

• Driver Unit: 52 mm dynamic driver.

• Output Power: ~5 W RMS.

• Sound Signature: Balanced mids and highs, with adequate bass for its compact size.

• Frequency Response: Covers standard portable speaker range for general music listening.

• Volume Capability: Suitable for small gatherings, personal listening, or outdoor activities.

Playback Options

1. Bluetooth Mode – Stream audio from any Bluetooth-enabled device.

2. FM Radio – Built-in tuner for listening to local radio stations.

3. TF Card Slot – Play music directly from a microSD card.

4. USB Port – Supports playback from USB flash drives.

5. AUX/Line-in – Wired connection option for non-Bluetooth devices.

Battery & Power

• Capacity: 1200 mAh rechargeable lithium battery.

• Playback Time: Up to 4 hours (varies by volume and mode).

• Charging Time: Around 2 hours.

• Charging Port: Standard USB charging.

Controls & Indicators

• Top/Side Buttons: Play/Pause, Mode Switch, Volume Control, Track Navigation.

• LED Indicators: Show mode selection, Bluetooth pairing, and charging status.

Key Advantages

• Compact and lightweight design for travel and outdoor use.

• Multiple playback options beyond Bluetooth.

• TWS pairing for stereo experience.

• FM radio capability — rare in many modern portable speakers.

• Quick 2-hour recharge time.

Technical Specifications Table