Digital Two-way Transmitter (DP20)

Full Duplex Radio Communication System "WiWi"

Without the PTT button, bidirectional communication is available
Max. 6 people can talk over the phone simultaneously, and every participant in the conversation can speak in turn.
Con be used without registration of separate radio waves
[1st time in Korea] 100% wireless communication available through Bluetooth technology
Clear voice transmission even in loud environment, thanks to application of the noise cancelling technology
Customized software provision by the corporate R&D center
(for tour guide, soccer referee, simultaneous interpreter, and drone, etc.)

DP-20 Features

• Wired repeater for SH-350
• Enhances the transmission of signal in the space, or between the floors, where the wireless signal is often weak due to structural obstruction
• Max, distance for connection with land line
• Optical fiber max. 2km

Specifications

Model	SH-320	SH-350G	SH-350M	DP-20
Usable frequency band	2,4GHz	2,4GHz	(EU)800MHz (USA)900MHz	SH-350G/M Exclusive use repeater
Output	Max.100mW	Max.100mW	Max.10mW	-
Effective service distance(L.O.S)	Up to 300m	Up to 500m	Up to 500m	-
Number of channels	Lithium polymer Battery 3.7V 800mA	Lithium polymer Battery 3.7V 1,300mA	Lithium polymer Battery 3.7V 1,300mA	Regular power 5V 3A
Battery	Lithium polymer 3.7V 1,000mA	Lithium polymer 3.7V 1,000mA	Lithium polymer 3.7V 1,000mA	Lithium polymer 3.7V 1,000mA
Houre of battery use	Max.11hr	Max.10hr	Max.10hr	-
Recharge time	2hr	3hr	3hr	-
Dimension(W x H x D)	32x65x22mm	38x78x19mm	38x78x19mm	140x98x30mm
Weight	39g	70g	70g	190g
Information display	LED	LCD	LCD	LCD
Water/Dust proof	-	IP54	IP54	-
Ambient operating-remperature range	-20°C~60°C	-20°C~60°C	-20°C~60°C	-20°C~60°C

Where to Use

It can be used anytime, anywhere in areas where communication is required, such as tour guides, broadcasting filming, simultaneous interpretation, industrial sites, communication between sports judges, drone control, military units, large discount stores, and restaurants.