The E31-433T17D with Wireless Modules DIP-20x36mm RoHS, manufactured by Ebyte, is a high-performance, low-power 2.4 GHz transceiver with a host controller interface (HCI) and integrated baseband protocols. It is compliant with Bluetooth 4.2 and can support multiple protocols including Bluetooth BR/EDR, Bluetooth Low Energy (BLE), and 2.4GHz proprietary RF protocol. It has a range of up to 1km with adjustable output power. The module also supports anon-Bluetooth applications such as voice command recognition, remote control, fleet management systems, and smart metering solutions. It features a crystal-clear sound transmission with an integrated amplifier, a composite antenna structure with a low-power consummation, and a standard DIP-20x36mm form factor. This module is RoHS certified.