MCU:MCU32 SIM card:Supported TF card:Supported Clock frequency:240Mhz Flash:4MB, PSRA:8MB Supported wireless communication protocols: Wi-Fi: 802.11b /g, Bluetooth: v4.2BR / and BLE Serial bus communication protocols: 12C, SPI, UART, SDIO, I2S, CAN Composition: +LGA,119 pins Usage area: G: Global Dimensions (mm): 30.0x30.0x2.9 Frequency band: LTE FDD: B1 / B2 / B3 / B4, B5 / B7 / B8 / B13/B18/B19/B20/B25/B26/B28/B66 LTE-TDD: B34/B38/B39/B40/B41 WCDMA: B1/B2/B5/B8 GSM: 850/900/1800/1900 MHZ Power consumption: LTE(mA): 2.3 WCDMA(mA): 3.3 GSM(mA): 2.8 Data transmission: LTE(MbpS): 150(DL)/50(UL) HSPA(Mbps): 42(DL)/5.76(UL) WCDMA(Kbps): 384(DL)/384(UL) GPRS/EDGE(Kbps): 236.8(DL)/236.8(UL) GNSS positioning: Beidou, GPS, GLONASS Supported software network protocols: IP/IPV4/IPV6/DNS Multi-PDP//FTPS/HTTP/HTTPS Android RIL: Supports Android 5.0/6.0/7.0/8.0/9.0 USB driver: 7/8/10, Linux, Android Supported voltage range (V):3.4 to 4.2 SIM card voltage (V):1.8V/3.0V Color:As Shown Material:Plastic+Metal Package Contents: 1set * dongle modules Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.