Multifunctional Digital Amplifier (Nopixing)
This multifunctional amplifier features a digital variable frequency power amplifier chip that increases output volume while suppressing echoes, noise, and feedback, and is designed for use with a high-fidelity headset microphone. It has a built-in 2200mAh 18650 lithium battery and supports TF card/USB flash drive playback, allowing it to function as both an amplifier and a portable speaker. Priced at HK$128, it is available in black, white, and pink.
Product Features
-
Digital variable frequency power amplifier chip:Provides high output volume with low power consumption and features frequency-shifting anti-feedback processing (as indicated in the product image) for stable, clear sound transmission.
-
2200mAh high-capacity battery:Takes approximately 3 hours to charge, with a manufacturer-rated operating time of approximately 20 hours and standby time of approximately 72 hours.
-
TF card/USB flash drive playback:Dual slots allow for plug-and-play playback and support single-track repeat, making it convenient for playing classroom materials or repeating promotional recordings at markets.
-
High-fidelity microphone:Features a 3.5mm high-strength metal plug and double-layer PVC cable to resist pulling; the microphone is ergonomically designed for comfortable, pressure-free wear over long periods.
-
Lightweight 200g body:Rubber-coated ABS material with a metal clip on the back and an adjustable belt (as indicated in the product image), allowing it to be worn around the waist or across the body.
-
LED screen display:Features an LED display on the front (as indicated in the product image), making playback status easy to see at a glance.
Specifications
| Brand |
Nopixing (original product information) |
| Amplifier |
Digital variable frequency power amplifier chip |
| Battery |
2200mAh 18650 lithium battery |
| Operating time |
Approximately 20 hours (manufacturer rating) |
| Standby time |
Approximately 72 hours (manufacturer rating) |
| Charging time |
Approximately 3 hours |
| Dimensions |
9.2 × 8.4 × 2.8cm (as indicated in the specification image) |
| Weight |
Approximately 200g (including battery) |
| Material |
Rubber coating + ABS plastic |
| Speaker |
3 inches (as indicated in the product image) |
| Playback |
TF card, USB flash drive; supports single-track repeat |
| Included accessories |
Headset microphone, belt, charging cable (as indicated in the product image) |
| Color |
Black, white, pink (rose gold) |
| Price |
HK$128 |
Usage Scenarios
School lectures and presentations, tour guides at tourist attractions, market exhibitions and promotions, dance and yoga instruction, meetings and training, and playing radio dramas for seniors.
Frequently Asked Questions
How long does a single charge last?The manufacturer rates it for approximately 20 hours of operating time and 72 hours of standby time. Charging takes approximately 3 hours, and actual performance depends on the volume.
Is it prone to feedback?It uses a digital variable frequency power amplifier chip with frequency-shifting anti-feedback processing (manufacturer rating), although actual performance may still be affected by the usage environment and the distance from the microphone.
Can it play pre-recorded teaching materials or promotional recordings?Yes, it supports TF card and USB flash drive playback and can repeat a single track.
What accessories are included?The product image shows a headset microphone, belt, and charging cable included; a lapel microphone is also shown in another product image, but the actual included accessories are based on the physical product. We recommend confirming with the seller before placing an order.
How is it worn?The body weighs approximately 200g and has a metal clip on the back, allowing it to be worn directly around the waist or across the body using the included belt.
What colors are available?Black, white, and pink (rose gold), all priced at HK$128.
