Introducing the CoolBox CoolTwin Black Bluetooth Headset with Microphone—the ultimate in-ear wireless solution for IT pros, students, and on‑the‑go multitaskers who refuse to compromise on sound or clarity. Built with a dual‑driver design, it delivers richer bass and brighter highs for music, videos, and voice calls, all in a compact, comfortable package.
What makes CoolBox CoolTwin Black stand out
-
Dual‑driver architecture for deeper, more dynamic sound and precise detail across the full 20 Hz – 20 kHz range.
-
Wireless freedom with a 10 m range—move around your space, take calls, and switch tracks without missing a beat.
-
Reliable Bluetooth 4.2 supports hands‑free calling and media streaming with stable connections and efficient power use.
-
Integrated microphone for clear voice pickup during calls and VOIP chats, designed to keep your conversations crisp in busy environments.
-
In‑ear comfort meets practical versatility with a lightweight 100 g form factor and durable plastic construction that stands up to daily use.
-
Wired option for flexibility with a 3.5 mm jack, giving you continuous playback even when Bluetooth isn’t available.
-
Easy charging and dependable power with a rechargeable lithium battery and a typical 2‑hour recharge time, delivering up to ~4 hours of autonomy.
-
All‑in‑one package includes a power cord, so you’re ready to charge and go out of the box.
Who is this for?
Ideal for professionals who need dependable audio for calls and conferences, students balancing coursework with online classes, and anyone who wants immersive sound from a compact, travel‑friendly headset. Whether you’re commuting, working from home, or tuning into your favorite playlist, CoolTwin Black keeps pace with your day.
Use cases and practical tips
- Take hands‑free calls on the way to work or between meetings using the built‑in microphone and clear audio profile support (HFP, HSP).
- Enjoy music, podcasts, and videos with a fuller sound thanks to the dual‑driver design and full frequency response.
- Use the 3.5 mm jack for a reliable wired connection when Bluetooth is unavailable, ensuring uninterrupted audio.
- Pair with compatible devices to leverage A2DP for high‑quality stereo audio and AVRCP for simple remote control.
Technical snapshot
- Bluetooth 4.2; supports HFP, HSP, A2DP, AVRCP
- 20 Hz – 20 kHz
- approximately 4 hours
-
Charging time: about 2 hours
-
Range: up to 10 meters
-
Weight / Build: 100 g; plastic construction
-
Form factor: In‑ear binaural headset with microphone
-
Included: Power cord; 3.5 mm jack compatibility
-
Color: Black
-
Year: 2018
With the CoolBox CoolTwin Black, you’re not just buying a headset—you’re investing in a versatile audio companion that moves with your tech‑savvy lifestyle. Seamlessly switch between calls and music, enjoy stable wireless performance, and rely on a design that prioritizes comfort and practicality as much as sound quality.
