QFX BT-90 is a versatile and portable audio amplifier designed for various personal and professional uses such as teaching, tour guiding, and shopping assistance. With its high-fidelity sound, wide frequency response, and low distortion, the BT-90 delivers crystal-clear audio. Its powerful 10W output ensures loud and clear sound, making it suitable for outdoor speech and public communication activities.

The built-in microphone and headset jack allow for direct speech or music playback, while the support for MP3 playback adds versatility to its functionality. The rechargeable lithium-ion battery provides up to 20 hours of use, ensuring long-lasting performance.