Voltage: 12/24V
Product features:
1) zoom in
2) Lighting
3) Call the police
4) radio
5) record
6) Whistle
Second, the waist hanging speaker
Technical parameters:
The frequency response is 100 Hz- 10 kHz 3dB.
Use the power lithium battery 7.4V2200mA.
Sensitivity-53 3dB
Product features:
1, the discharge time is long, and it can take about 6 hours for a single charge (lithium battery), which is an ordinary sound reinforcement.
2-4 times that of the device.
2. The sound reinforcement effect is good, and the power is 0-25W, which is 2-4 times that of ordinary speakers.
3, lithium battery, long life (2-4 years). 4.MP3 music or computer music can be played through the speaker.
5, using ABS engineering plastics, not afraid of impact.
6. The timbre is clear.
7, loud sound, power 15W, applicable area of 200 square meters.
8, small size, ultra-thin speaker.
9, easy to charge, plug in to charge, rechargeable.
10, and the battery (lithium battery) has a long service life of 8- 10 hour.
1 1, the product design is compact and easy to carry, and it is a good helper for many activities.
Scope of use:
Small speakers are not only suitable for mobile outdoor sound reinforcement such as teaching, tourism and enterprise mobile outdoor training, but also widely used in outdoor publicity and fitness activities.
And cultural performances and other occasions.
Matters needing attention
1. When using, if you find that the power indicator is flashing red or bright red, it means that the power is insufficient at this time, please charge it in time.
2. When using headphones, please aim at them for better effect.
In order to prevent howling caused by incorrect direction.
Third, the wireless teaching amplifier
First, the main purpose
1, indoor and outdoor lectures on campus (especially suitable for amplification and recording of dance and gymnastics demonstrations,
Play) teaching.
2. Conference, class, military training, tour guide, product promotion, auction amplification, recording and playback.
3, assembly, speech, traffic command, exhibition, etc., mobile sound reinforcement and recording of various on-site meetings.
Sound, play.
Second, the main features
1, all imported high-quality chips, digital phase-locked loop technology, excellent digital compander.
2, wired wireless microphone amplification, wireless transmission, line input and output.
3, collar clip microphone, high sensitivity, anti-howling, clear sound quality.
4, timely oscillation circuit, stable frequency, strong anti-interference ability.
5. Multiple groups of frequencies do not interfere with each other and have wide selectivity.
6, wireless microphone amplification.
7. Digital reverberation.
Four, pull rod amplifier
Hand-pull type, handle pulley type, easy to move. Simple assembly of built-in battery, convenient replacement and maintenance.
Built-in two 8-inch hi-fi woofers and 4-inch tweeters.
Two power supply options: AC alternating current, built-in large-capacity rechargeable battery.
SUB/SD card input /FM radio, to achieve truly fully compatible playback.
When using alternating current, in case of power failure, the built-in battery of the main engine will automatically supply power for use, and the use time is 10 hour. (Speaking through the microphone)
Battery protection circuit, when the battery voltage is lower than
The timely oscillation circuit has stable frequency and strong anti-interference ability.
100 sets of VHF 2 15 ~ 265 MHz frequency or UHF 700 ~ 960 MHz adjustable frequency, non-interference and wide selectivity.
Two wireless receivers and two wireless microphones can use wireless microphones at the same time.
This machine can connect several identical hand-drawn boxes at the same time, thus increasing the coverage. In Fiona Fang, the sound coverage of a hand-pulled box machine can reach half a kilometer.
Use:
Indoor and outdoor lectures of the school (especially suitable for amplification, broadcasting and playback of dance and gymnastics demonstrations).
Conference \ military training \ tour guide \ product promotion \ auction amplification \ broadcast \ play.
Parade \ election \ assembly \ speech \ traffic command \ exhibition ... all kinds of live meetings will be exchanged, amplified, received and broadcast.
Verb (abbreviation for verb) portable loudspeaker
The original speakers used electron tubes, which were big and light. With the continuous miniaturization and integration of electronic components, portable speakers came into being. Although small in size, the sound is not inferior at all. Portable speaker refers to a portable, small size, simple and clear operation of sound reinforcement equipment.
Six, frequency amplifier
A crossover speaker is a speaker that broadcasts by dividing the sound.
Due to the adoption of frequency division broadcasting technology, the sound quality of the speaker has been greatly improved. It can not only effectively protect the hearing health, but also make the expanded sound more realistic, thus improving the voice effect.
Traditional speakers, after the hot market in recent years and the price shopping brought by homogenization competition, make enterprises pay more and more attention to product cost rather than quality. The blind pursuit of cost not only leads to the sound quality not being improved, but also the noise is getting louder and louder, which brings certain damage to the physical and mental health of users.
Poor sound quality can no longer meet the needs of consumers whose living standards are gradually improving, and the market is in urgent need of product upgrading.
The brand-new "separator" effectively solves the shortcomings of traditional speakers because of the adoption of frequency division broadcasting technology. It can improve softness and fineness, reduce noise and make sound quality more delicate. Will not cause dizziness, irritability, rapid heartbeat, high blood pressure, entertainment will make people feel happier and healthier. The power amplifier can make the middle, high and low tones echo harmoniously, and the microphone can input sound and play more realistic sound quality, thus grasping the audience and enhancing the sense of closeness.
Because of the advanced circuit frequency division amplification design used only in high-end speaker systems, the high notes are crisp, the midrange is full and the bass is deep, and the sounds in each frequency band are more balanced and harmonious, which is closer to the natural sound frequency band. The eardrum can get all-round stimulation from the sound, which is more balanced and not easy to get tired. Moreover, the more you listen, the better your mood, the happier your body and mind, the healthier your body, and you can better enjoy the fun brought by music. It can protect the hearing system of students, the elderly and infants.
It not only has all the functions of traditional speakers, but also greatly improves the healthy sound quality, and is the best substitute for traditional speakers. Therefore, once it was launched, it was warmly welcomed by teachers, tour guides, the elderly and other consumer groups, and the market was good.