Rated Power
20W
Product Overview
The Harmonai HJ-T121a is a professional portable Bluetooth speaker that combines high-power output, wireless connectivity, and vibrant RGB lighting. Equipped with a dual-speaker configuration — a 12-inch woofer and a 3.5-inch tweeter — it delivers a rated output of 20W, producing deep, powerful bass and crisp, clear treble. It supports multiple audio sources including Bluetooth, FM radio, USB, TF card, and AUX input. Its built-in 7.4V/2200mAh lithium battery enables extended cord-free use outdoors. The unit features a full-color ambient lighting system, plus independent controls for treble, bass, microphone volume, and echo — turning every performance into a full audiovisual experience.
Speaker Configuration
12-inch woofer + 3.5-inch tweeter
Battery Specification
7.4V / 2200mAh lithium battery
Input Options
USB / TF card / AUX / Microphone
Features
FM radio / Bluetooth / TWS dual-speaker pairing / Recording / Mic priority
Audio Controls
Treble adjustment / Bass adjustment / Microphone volume / Master volume / Echo volume
Lighting Effect
RGB lighting
Recommended Use Cases
Whether for outdoor plaza performances, camping bonfire parties, family gatherings, mobile karaoke, or street performances, the Harmonai HJ-T121a creates an immersive atmosphere with its 20W output and dynamic RGB lighting. Its TWS dual-speaker pairing function allows two units to be linked as a stereo system — ideal for larger venues. The built-in lithium battery frees you from cables, letting you enjoy music anywhere, anytime.
Learn more about the Harmonai HJ-T121a portable Bluetooth speaker — contact us for pricing and bulk procurement options.
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