Product Overview
The BEARTWO SX-990 Bluetooth Headphones represent a refined evolution of the beloved SX-991 model, engineered specifically for today’s dynamic and active lifestyles. Sporting a striking black and fluorescent green color scheme, these headphones blend bold style with everyday practicality. One of the most user-friendly upgrades is the repositioned function key—now conveniently placed on the outside surface of the neckband—making it easily accessible during workouts or commutes without fumbling through pockets or bags. Whether you’re hitting the gym, commuting to work, or simply enjoying hands-free audio during daily tasks, the SX-990 delivers reliable performance across multiple devices. Designed for comfort, durability, and seamless connectivity, this headset ensures you stay connected and entertained wherever life takes you.
Key Features
- Foldable & Retractable Design: The ergonomic neckband structure allows the headphones to fold compactly, making them ideal for travel or storage in tight spaces like gym bags or backpacks. The innovative retractable earbuds let you adjust the wire length up to 28 cm total (with 11 cm of usable extension), significantly reducing tangling and clutter. Simply pull out only the amount you need—perfect for quick access during runs or workouts—and retract the rest for secure, snag-free transport.
- Long-Lasting Battery Performance: Engineered for extended use, the SX-990 offers up to 18 hours of continuous talk time and 16 hours of music playback. This impressive battery life means you can go all day—whether you’re traveling long distances, attending back-to-back meetings, or powering through an intense fitness routine—without worrying about frequent recharging. A single charge supports uninterrupted enjoyment from morning until night.
- Dual Device Connectivity: Stay productive and connected by pairing two Bluetooth devices simultaneously—such as your smartphone and tablet or laptop. This feature is especially valuable for multitaskers who switch between personal calls and work-related notifications. Compatible with iPhones, iPads, Samsung devices, and any other Bluetooth-enabled gadgets, the SX-990 ensures smooth transitions between audio sources without disconnection hassles.
- Vibration Alerts & Voice Prompts: Never miss an important call again. The headphones feature built-in vibration alerts that gently notify you when an incoming call arrives—even in noisy environments like gyms or busy streets. For added convenience, Siri activation is just a double-click away: press the volume “+” button twice while picking up a call to access voice commands hands-free. This makes answering calls, setting reminders, or navigating routes effortless during exercise or driving.
- HD Sound with CVC Noise Cancellation: Immerse yourself in rich, high-definition audio powered by the latest Bluetooth technology and CVC (Clear Voice Capture) noise reduction. The integrated microphone enhances call clarity by filtering out background distractions, delivering crisp stereo sound and deep bass. Whether you’re listening to podcasts, streaming music, or taking business calls, every note comes through clearly and balanced.
- Sweatproof Construction: Built with soft, flexible silicone materials, the neckband resists sweat, moisture, and wear—ideal for high-intensity activities. Lightweight yet durable, these headphones remain comfortable during runs, jogs, walks, or any outdoor activity. The breathable design prevents irritation even during prolonged use, ensuring reliability whether you’re training indoors or exploring the great outdoors.
Technical Specifications
- Model: BEARTWO SX-990 (Upgraded version of SX-991)
- Battery Life: Up to 18 hours talk time; up to 16 hours music playback
- Retractable Wire Extension: Up to 28 cm total length (11 cm usable)
- Connectivity: Bluetooth 5.0 (supports dual-device pairing)
- Siri Support: Activated via double-click of volume “+” button during call
- Material: Soft silicone, fully sweatproof and flexible
- Included Accessories: Micro USB charging cable, protective carrying case, three sizes of gel ear tips (small/medium/large), user guide
Benefits & Use Cases
Designed with mobility in mind, the BEARTWO SX-990 seamlessly integrates into active routines without sacrificing comfort or functionality. The lightweight, contoured neckband rests comfortably against your collarbone, keeping the earbuds securely in place without slipping—even during vigorous movement. Its foldable shape fits neatly inside the included carry case, protecting the device from dust, scratches, and accidental drops. The retractable cord eliminates frustrating tangles, letting you enjoy freedom of motion without compromising on audio quality.
For professionals constantly switching between devices, dual-pairing capability streamlines workflow: take a work call on your phone, then seamlessly resume music playback from your tablet. Fitness enthusiasts will appreciate the sweat-resistant build and secure fit, while commuters benefit from reliable noise isolation and clear voice pickup during calls. With intuitive controls for volume adjustment, track skipping, and Siri activation, operating the headphones requires minimal effort—perfect for users new to wireless audio or those seeking simplicity.
Important Notes
To ensure optimal performance and avoid connection issues, always follow proper pairing procedures. If your phone doesn’t detect the SX-990 during setup, try rebooting the headphones: while plugged into the Micro USB cable, long-press the multifunction button (MFB) until the blue indicator flashes three times. Afterward, clear the headset from your phone’s Bluetooth list and reconnect. To switch languages, press both volume “+” and “-” buttons simultaneously while powered on—the device will announce the selected language.
When pairing two phones, first connect the primary device, then turn off its Bluetooth. Reboot the headphones and pair the secondary device. Once connected to the second phone, re-enable Bluetooth on the first device and select “#SX-990#” to restore the link. Detailed step-by-step instructions are provided in the included user guide. For additional support, refer to the FAQ section or contact customer service directly.
The package includes everything needed for immediate use: the SX-990 headphones, fast-charging cable, compact travel case, multiple ear tip sizes for a customized fit, and a comprehensive instruction manual. BEARTWO backs this product with a 12-month worry-free warranty—and lifetime customer support available 7 days a week—ensuring a risk-free purchase experience.



























