NRF24L01 is a 2.4GHz band transceiver with auto-acknowledge and auto-retransmit capabilities, supporting up to six channels of data. NRF24L01+ Module features a high-performance wireless data transmission chip with increased PA and LNA, RF switches, band-pass filters, and full bidirectional RF support, significantly extending the effective communication range. The module includes 5V tolerant inputs, allowing direct connection of SPI pins to microcontrollers. Wireless Module includes a small SMD LED indicator; onboard 3.3V voltage regulator accepts 5V supply and provides 3.3V power for the attached nRF24L01+ module. Widely used in wireless remote control, sensor devices, RFID, smart grid, and wireless audio applications. Specification: PA Gain: 20dB LNA Gain: 10dB Frequency: 2.4GHz ~ 2.5GHz Range: 800+ meters line of sight Multi-frequency: 125 channels Transmit Operating Current (Max): 115mA Receiving Operating Current (Max): 45mA Operating Voltage: 3 ~ 3.6V (Recommended 3.3V) Color: Black Material: Plastic + Metal Package Contents: 2 x NRF24L01+PA+LNA Wireless Transceiver RF Module 2 x 2.4G Antenna 1100m 2 x NRF24L01 Wireless Module Breakout Adapter Note: Light and display differences may cause slight color variation from the actual item. Measurement allows an error of +/- 1-3cm.