EV Charging Infrastructure
Seyoung Information,Telecommunication Co., Ltd.
24 Dec 2025
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Get Your Quote Now : Place of origin : Korea
Digital Two-way Transmitter (DP20)
Description
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 Exclusiveuse repeater |
| Output | Max.100mW | Max.100mW | Max.10mW | - |
| Effective servicedistance(L.O.S) | Up to 300m | Up to 500m | Up to 500m | - |
| Number of channels | Lithium polymerBattery3.7V 800mA | Lithium polymer Battery 3.7V 1,300mA | Lithium polymer Battery 3.7V 1,300mA | Regular power5V 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.
Clients Reviews