Charging the HM-70 Handheld MIC

8 2 0 i R

U s e r

M a n u a l

			AUDIO INPUT		250	400	700	1K	1K4
			TV/VCR	CD/DVD	250	400	700	1K	1K4
			TV/VCR	CD/DVD				+10
	2.06/2.54							+10
	2.06/2.54
SPEAKER OUTPUTS	DC	CHARGERS	L	L				0
	POWER		L	L				0
	POWER
	24V
	DC		R	R				-10
			R	R

1.Ensure the HM-70 handheld microphone is turned OFF (ON/OFF switch on the side of the unit). The 820iR can be left on, but must be connected to AC power in order to charge the microphone.

2.Connect the loose end of the charging cable into the jack labeled CHARGER on the side of the HM-70. Connect the larger end of the charging cable to one of the CHARGERS jacks on the back of the 820iR. The HM-70’s rechargeable batteries are factory installed.

3.The power indicator light next to the power switch glows green when the cable is connected and charg- ing correctly. The light goes out when fully charged. Batteries

will charge in 8 to 12 hours. A fully charged battery will run for up to 8 hours of continuous operation.

4.The HM-70can remain charging for up to 10 days. Overcharging will shorten battery life.

The HM-70 does not use a cradle for charging. The charging cable must be plugged directly into the charging jack in the transmitter.

820iR specifications

LightSpeed Technologies has been at the forefront of educational audio solutions, delivering innovative products that enhance communication and learning in classrooms. One of their standout products is the LightSpeed Technologies 820iR, a cutting-edge infrared sound system designed to bolster audio clarity and engagement in educational settings.

The 820iR is engineered with an array of features that prioritize both teacher convenience and student comprehension. At its core, the system utilizes infrared technology to transmit high-quality audio directly from the teacher’s microphone to the students. This ensures that every word is heard clearly, regardless of classroom size or acoustic challenges. The use of infrared boosts sound quality while minimizing interference, making it a reliable choice for diverse learning environments.

A notable feature of the 820iR is its wireless microphone system. Teachers can enjoy hands-free operation with the lightweight, comfortable headset microphone, allowing them to move freely around the classroom without compromising audio quality. This mobility fosters a more interactive teaching style and keeps students engaged.

The 820iR system also supports multiple channels, which means that multiple instructors can use their microphones simultaneously without interference. This feature is particularly beneficial in collaborative teaching scenarios or during team-teaching arrangements, as it ensures that each teacher's voice is transmitted clearly.

In terms of installation, the 820iR is user-friendly and designed for easy setup, making it accessible for schools and institutions looking to upgrade their audio infrastructure. The system includes wall-mounted speakers that are discreet yet powerful, providing an even distribution of sound throughout the classroom.

Another crucial aspect of the LightSpeed Technologies 820iR is its compatibility with assistive listening devices. This inclusivity feature allows students with hearing impairments to benefit from the same high-quality audio experience as their peers, adhering to educational standards for accessibility.

Overall, the LightSpeed Technologies 820iR stands out for its commitment to improving classroom communication. With its robust features, wireless capabilities, and user-centric design, it represents a significant advancement in educational audio systems, ultimately fostering an enriched learning environment where every student can thrive.