User Manual of Portable Digital Voice Amplifier
Welcome to use digital voice amplifier S358 series, its capacity of lithium batteries can reach to 4000mAh. With double endurance and long standby capacity, it’s suitable for teaching, meeting, training, tour guide, singing, square dance, sales promotion, outdoor activities, etc. Please read the manual carefully before using, so that you can operate the voice amplifier correctly and get ideal performance.
Product functional features:
1. This amplifier has wired and UHF wireless versions. The wired version has no UHF receiving circuit and cannot be used as a wireless version. The wireless version has a UHF wireless receiving circuit, which can achieve wireless amplification with the UHF wireless transmitter.
2.Wired version has 2000mAh or 4000mAh built-in lithium battery separately; and UHF wireless version has 2000mAh or 4000mAh built-in lithium battery separately.
3.With digital amplification technology, its rated power is 5W and max power is up to 10W.
4.High performance double NdFeB foam edge loudspeaker, with clear acoustic fidelity, loud voice and high sensitivity.
5.Equipped with mainstream TYPE-C USB interface, it can be charged with 5V mobile phone charger and computer USB port.
6.Dial volume switch, simple and fast volume control.
7.Support AUX-in, support MP3, WMA, WAV files.
8.Exquisite and fashionable appearance design, comfortable feel, simple function, simple operation, easy portability such as hanging on shoulder or waist.
Keys and Ports instruction：
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.|
|Pair key||Long press Pair key, you can connect the UHF wireless transmitter, and the UHF wireless amplification can be achieved after the pairing is successful. For wired version, this key has no function ,no silk print.|
TYPE C Charging
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.
1.Power switch: 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: 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.Microphone amplification: Insert the microphone into the MIC interface to amplify; Please wear the microphone well and properly adjust the microphone position and keep at least 50cm distance from amplifier to avoid howling.
4.Pairing operation between UHF wireless amplifier and UHF transmitter:
The product has been paired before leaving the factory. It is not necessary to pair again, but it can be used for wireless sound reinforcement. If it is necessary to pair again according to the actual situation, take the pairing operation of the microphone and the S128 UHF headset microphone as an example:
1)Turn on the power switch of the amp" "of the amplifier for 3 seconds. When the red indicator turns into the yellow indicator, it indicates that the amplifier has entered the waiting pairing state.
2)After turning the power switch of S128 transmitter to the "ON" power on state, press the side volume "+" key and the volume "-" key at the same time, the blue indicator will flash three times for signal transmission, and the yellow indicator of the loudspeaker will flash three times and become a red indicator, indicating that the loudspeaker and S128 transmitter have been paired successfully. At this time, wireless loudspeaker can be used, and the loudspeaker sound can be adjusted through "+" and "-".
3)If the voice prompts "pairing failure" or there is a serial code phenomenon with other amplifiers, you can repeat the above two pairing operations.
4)Tips: This operation process is limited to wireless version only.
5.Aux mode: 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.
6.Charging: It starts to be charged through TYPE-C USB cable when you connect it with computer, a 5V mobile phone charger, or a mobile power supply device etc. The indicator flickers at the speed of 1 time/second when it’s being charged. The indicator is always lighting when it’s 80% charged. It will be full of charge if you continue to charge one more hour. When the indicator flickers quickly which shows that the battery power is low, please charge it. It takes about 4-6 hours to fully charge it.
Tips and cautions:
1.The microphone is placed 0.5 to 1 centimeter in front of your mouth. It is suggested that the sponge cover should not be removed, because the sponge cover can weaken the air flow, reduce the noise, and make the voice be clear.
2.Microphone should not be close to the voice amplifier, and it’s better if place the amplifier against the microphone. If howling occurs you can reduce the volume appropriately or enlarge the distance between the microphone and the amplifier. The microphone pickup head should not be grasped by hand, otherwise it will be easily howling because of resonance.
3.The product only supports standard 5V charging and does not support all kinds of QC quick charging. Charging with a voltage higher than 5V will burn the product or fail to charge.
4.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.
5.In order to avoid distortion or damage caused by excessive voltage or current, please do not insert the external sound source signal into the MIC interface.
6.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.
7.In order to prevent the danger of short-circuiting, please keep products or accessories away from water, moisture, rain or splash.
8.Do not use it in inflammable and explosive areas or in areas where radio equipment is prohibited. When you entering dangerous areas or prohibited areas, power should be turned off to avoid potential safety hazards.
9.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.) in order to avoid damage and danger.
10.In order 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.
Voice amplifier *1, 3.5mm audio cable *1, TYPE-C USB cable*1, Head wear microphone*1,
Hanging rope*1, User manual *1。(The wireless version will come with 1 UHF launcher, 1 Micro
charging wire, and 1 UHF launcher manual。)
1.Specification of wired and UHF wireless version with 4000mAh lithium battery:
Loudspeaker：3 inches 2 ohmic magnetic speaker
Battery：3.7V/4000mAh, 2 lithium batteries in parallel
Charging voltage：USB/DC 5V 1A
Charging time：4-6 hours
Using time：Wired: 35-38hours Wireless:20-25hours
2.Specification of wired and UHF wireless version with 2000mAh lithium battery:
Loudspeaker：3 inches 2 ohmic magnetic speaker
Battery：3.7V/2000mAh,1 lithium battery
Charging voltage：USB/DC 5V 1A
Charging time：2-3 hours
Using time:Wired: 16-18hours Wireless: 8-10hours