# Technical Specifications

### Device Specifications <a href="#toc150171934" id="toc150171934"></a>

WiSer-USB:

* Dimensions: 37.8 x 20.4 x 8.2 mm (35.8 x 14.4 x 4.7 mm without enclosure)
* Wireless Protocol: ESP-NOW on 2.4GHz Wi-Fi (IEEE 802.11b/g/n)
* Supported Baud Rates: up to speed of 921,600 baud
* Power Supply: USB Bus Power

WiSer-TTL:

* Dimensions: 36.5 x 38.4 x 9.8 mm (28 x 29 x 4.3 mm without enclosure or header pins)
* Wireless Protocol: ESP-NOW on 2.4GHz Wi-Fi (IEEE 802.11b/g/n)
* Supported Baud Rates: up to speed of 921,600 baud
* Power Supply: USB Bus Power or +5V and GND header pins or +5V and GND castellated pins

### Compliance Information <a href="#toc150171935" id="toc150171935"></a>

WiSer devices comply with applicable regulations. For detailed compliance information, please visit our website.


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