Classification of loudspeakers
Loudspeakers are divided into wireless amplifiers and wired amplifiers, wired loudspeakers: the output devices are small and portable. Wireless speaker: the output device is large, simply carrying input devices.
First, megaphoneVoltage: 12/24VProduct features:1) sound amplification2) lighting3) alarm4) radio5) recording6) whistleTwo waist hanging type loudspeakerTechnical parameter:Frequency response 100Hz-10KHz + 3dBUse the power lithium battery 7.4V 2200mASensitivity -53 + 3dBProduct features:1, the discharge time is long, one charge can use about 6 hours (lithium battery), is ordinary sound amplification2-4 times as many.2, sound amplification effect, power 0-25W, 2-4 times the ordinary amplifier.3, lithium battery, long life (2-4 years). 4, MP3 music or computer music can be played through the loudspeaker.5, the use of ABS engineering plastics, not afraid of impact.6, the timbre is clear.7, sound loud, power up to 15W, the applicable area of 200 square meters.8, small, ultra-thin speakers.9, convenient charging, plug plug on rechargeable, can be repeated charging.10, batteries (lithium batteries) use time is very long, can amount to 8-10 hours11, the product design is small, easy to carry, is a good helper of many activities.Range of use:Small microphone is not only suitable for teaching, tourism, enterprise flow, on-site training and other mobile site sound amplification, but also can be widely used in site promotions, fitness activitiesMoving and performing arts and other occasions.Matters needing attention1. when used, if the power indicator is flashing red or long bright red, it indicates that the power is insufficient, please charge it in time.2 when using the headset microphone, in order to achieve better results, please put the microphone on the headThe sound of the head is measured so as not to cause a whistling.
