Nordic nRF52833 SoC solution based chip antenna module (3pcs PaK). Supports Multimultiprotocol Bluetooth 5, IEEE 802.15.4, Thread, Zigbee, ANT+, and 2.4Ghz RF. Compact size with 10.5 x 15.5 x 2.05 mm (approx. 0.413 x 0.61 x 0.09 in) with 42 GPIO. Comprehensive Interface: I2C & SPI & I2S & UART & NFC & USB , Operation Temp.: -40°C to 105 °C (-40°F~221°F) / Supports: 1.7 to 5.5 V supply voltage. The module is BT5.2 qualified, FCC, IC, CE, Telec (MIC), KC, SRRC, NCC, RCM pre-certified.