The nRF24L01 is a 2.4GHz ISM band transceiver. With this voltage adapter. The nRF24L01 module can accept up to 12V. A host microcontroller can communicate and configure the nRF24L01+ over a 4-pin Serial Peripheral Interface (SPI). The configuration registers are accessible through the SPI connection. Standard pin layout and clear markings on board allows for easy connection to the nRF24L01 module. The module comes with a voltage regulator adaptor which allows for direct connection to the higher voltage board, like Arduino. Internal filtering results in high margins of meeting RF regulatory standards. The module’s radio uses Gaussian Frequency-Shift Keying (GFSK) modulation as well as fast Automatic Gain Control (AGC) Features: Base Breakout module with voltage regulator and bypass capacitors for stability. Low power consumption: Ultra low power consumption as low as 11.3mA transmitting, 13.5mA receiving at 2Mbps, 900nA in power down, and 26uA in standby.Multi frequency points:125 frequency points to meet the needs of multi point communication and frequency hopping communication. Package Includes:4 Pcs Voltage Regulating Breakout Adapter.