Download the PDF format of this manual: 
S368 Wired Version 1800mAh User Manual 2024-03-15.pdf
Function map：
Voice Amplifier
S368
Keys and Ports instruction：
| Mic-in | In Standby mode, insert microphone to 3.5mm microphone interface to amplify. |
| Aux-in | 3.5mm audio interface, support music play, insert audio cable to play music automatically. |
| TYPE C Charging Port | Charging port supports charging through 5V mobile phone charger and computer USB port. |
| Dial Volume Switch | Rotating the dial can switch on/off the amplifier and adjust the volume. Rotate the switch clockwise (pull right) to turn on the amplifier and increase volume, rotate the switch counterclockwise (pull left) to decrease volume till turn off the power. |
Operation description：
1. Power switch of the voice amplifier:
Pull right the switch clockwise, turn on the amplifier when you hear a "click" and the indicator becomes on. Pull left the switch counterclockwise, turn off the amplifier when you hear a "click" and the indicator becomes off.
2. Volume control of the voice amplifier:
Rotate the volume dial to adjust the volume. Pull right the button clockwise to increase the volume and pull left the button counterclockwise to decrease the volume.
3. Wired microphone voice amplification:
Please wear a wired microphone, adjust the microphone position appropriately, and maintain a distance of at least 50 centimeters from the amplifier to avoid whistling. Then insert the audio plug of the wired microphone into the MIC interface of the voice amplifier, adjust the microphone head to face the mouth, and maintain 0.5 cm to 1 cm. At this point, the voice can be amplified. It is recommended not to remove the sponge cover, as it can weaken airflow, reduce noise, and make the sound clear.
4. Aux mode of the voice amplifier:
Connect the voice amplifier with computers, mobile phones, PAD, MP3，MP4 and other devices through the 3.5mm AUX audio cable to play audio, it can be used as external speaker at this time.
Charging instructions:
1. When the battery is low, you can use the complimentary USB-C charging data cable to charge the voice amplifier through devices such as a computer, 5V phone charger, mobile power supply, etc.
2. The product only supports standard 5V charging and does not support all kinds of QC fast charging. Charging with a voltage higher than 5V will burn the product or fail to charge.
3. LED indicator light description:
| Voice amplifier status | LED indicator status | |
| Low battery | LED indicator light flashing fast | |
Turn on the power to charge | charging | Yellow light always on |
| Charged | Green light always on | |
Turn off power to charge | charging | Red light always on |
| Charged | Green light always on | |
Product specification：
Rated power：3W
Max power：6W
Loudspeaker：2.5 inches 2 ohmic magnetic speaker
Frequency response：200Hz-15KHz
Battery：3.7V/1800mAh, 1 lithium battery
Charging voltage：USB/DC 5V 750mA
Charging time：2-3 hours
Using time：30hours
Size：72*97*27mm
Net weight：125g
Packing List：
Voice amplifier*1, 3.5mm audio cable*1, USB-C cable*1, wired microphone *1, adjustable waistband*1, user manual *1
Tips and cautions:
1. When you use it for the first time, or after a long time before you use it again, please keep the amplifier be fully charged to ensure battery life.
2. To avoid distortion or damage caused by excessive voltage or current, please do not insert the external sound source signal into the MIC interface.
3. Please don’t disassemble or repair it by non-professional technical personnel. If there are any problems, please contact our company for after sale service.
4. To prevent the danger of short-circuiting, please keep products or accessories away from water, moisture, rain, or splash.
5. Do not use it in inflammable and explosive areas or in areas where radio equipment is prohibited. When you enter dangerous areas or prohibited areas, power should be turned off to avoid potential safety hazards.
6. Do not use it in high temperature, high pressure, and high humidity environment (such as sunshine exposure, stove, heater, humidifier, water pool, etc.). Do not place it or close to dangerous sources (fire source, liquid, explosive, high-speed machinery, etc.) to avoid damage and danger.
7. To protect the environment, please put the discarded amplifier in the designated trash can or send it back to the manufacturer. It should not be discarded at will.
FCCID：2AXGRVA1
Shanghai Norwii Technology Co., Ltd
Address: No.277 Jinfeng Road, Pudong New Area, Shanghai, 201201, China
Tel: 86-21-51872080
Email: support@norwii.com
