Weofly Boulder Portable Bluetooth Speaker Black
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Technical Specifications
| Attribute | Detailed Specification |
| Product Full Name | Weofly Boulder Waterproof Outdoor Bluetooth Speaker with RGB Lights |
| Product Model / SKU | Boulder (WFBD963BL) |
| Brand / Manufacturer | Weofly |
| Product Category | Compact Outdoor & Travel Bluetooth Speaker / Portable Audio Device |
| Colorway Options | Shadow Black |
| Enclosure & Build Materials | Heavy-Duty Protective Fabric Mesh + Impact-Resistant ABS Shell + Anti-Shock Silicone Trim |
| Acoustic Driver Setup | 1 × 52 mm High-Excursion Full-Range Dynamic Driver + Integrated Metal Bass Cone / Passive Radiator |
| Rated Output Power | 10W Continuous RMS Output (Up to 12W Peak Acoustic Output) |
| Signal-to-Noise Ratio (SNR) | ≥ 90 dB (High-Clarity Acoustic Output) |
| Audio Latency | Ultra-Low Latency (~46 ms Sound-Video Synchronization) |
| Lighting Effects | Dynamic Multi-Color RGB Lighting Ring (7 Colorful Rhythm-Sync Modes with Dedicated Off Switch) |
| Bluetooth Version | Bluetooth 5.4 (High-Speed Low-Power Wireless Audio Transmission) |
| Wireless Operating Range | Up to 10 Meters (33 Feet Barrier-Free Range) |
| True Wireless Stereo (TWS) | Supported (Wirelessly Link 2 × Weofly Boulder Speakers for Expanded Dual-Channel Stereo Sound) |
| Microphone & Calling | Built-in Digital Microphone for Crystal-Clear Hands-Free Voice Speakerphone Calls |
| Water & Ingress Protection | IPX5 Certified Water and Dust Resistance (Withstands Water Jets, Splashes, Dust, and Mud) |
| Battery Chemistry & Capacity | 1800 mAh High-Density Rechargeable Lithium-Polymer Battery |
| Playback Time | Up to 5 Hours Continuous Music Playback (at 50% Volume with Lighting Dependent) |
| Charging Mechanism & Port | Reversible USB Type-C Fast Charging Interface (5V Input) |
| Charging Duration | Approx. 3 Hours Full Charge Cycle |
| Supported Audio Sources | Wireless Bluetooth 5.4 Streaming, MicroSD / TF Card Music Playback (Supports FAT32 up to 32GB) |
| Auxiliary In / Power Bank Out | AUX In: No / Power Bank Charge Out: No |
| Physical Tactile Controls | Rubberized Sealed Buttons (Power On/Off, Light Mode Toggle, Play/Pause/Call, Volume Up/Next, Volume Down/Previous) |
| Portability Features | Integrated Heavy-Duty Woven Lanyard Carrying Strap for Easy Bag/Gear Attachment |
| Product Dimensions (L × W × H) | Approx. 80.0 mm × 80.0 mm × 114.0 mm |
| Product Net Weight | Approx. 384 g (Ultra-Portable Handheld Cylinder) |
| System Compatibility | Android, iOS, Windows, macOS, and Bluetooth-Enabled Smart Devices |
| Package Contents | 1 × Weofly Boulder Portable Bluetooth Speaker 1 × Integrated Woven Carrying Strap 1 × USB Type-C Fast Charging Cable 1 × User Manual & Quick Start Documentation |
| Warranty Policy | 1 Year Brand / Importer Limited Warranty |
Product Description
The Weofly Boulder is a compact, rugged outdoor Bluetooth speaker engineered for hikers, campers, students, and casual travelers seeking punchy acoustic volume, vibrant aesthetics, and dependable outdoor resilience. Built in an ergonomic cylindrical form factor measuring 80 × 80 × 114 mm and weighing just 384 grams, the Boulder is constructed from an impact-resistant ABS frame wrapped in durable ballistic fabric mesh and reinforced with tactile silicone bumpers. The speaker features an integrated high-strength braided carrying strap, allowing users to effortlessly hook it onto backpacks, bicycle mounts, or camping hooks for music anywhere on the go.
Audio reproduction is driven by an oversized 52mm full-range dynamic driver coupled with a custom metal bass cone, producing 10W of clean, distortion-free output accented by deep, punchy low-frequency resonance and articulate vocal clarity across a 90dB signal-to-noise ratio. Adding visual excitement to any listening session, the speaker features dynamic multi-color RGB party lights that pulse and sync in real time to the rhythm of your music through seven distinct lighting presets, with a dedicated toggle switch to turn the lights off and conserve power when preferred.
Equipped with modern Bluetooth 5.4 wireless technology, the Boulder provides fast, stable wireless pairing across a 10-meter range with an ultra-low latency rating of approximately 46ms, making it ideal for streaming movies and casual gaming without noticeable audio-video desync. It supports True Wireless Stereo (TWS) pairing to link two Weofly Boulder speakers simultaneously for a wider 20W stereo soundstage, a built-in microphone for speakerphone calling, and standalone TF card playback supporting up to 32GB memory cards. Powered by an 1800mAh rechargeable lithium battery that provides up to 5 hours of playback and certified with an IPX5 water-resistant rating against rain, splashes, and dirt, the Weofly Boulder stands as a durable, all-weather portable audio companion backed by an official 1-year warranty.
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