NRF24L01 is a 2.4GHz band transceiver with auto-acknowledge and auto-retransmit capabilities, supporting up to six channels of data reception. The NRF24L01+ module features a high-performance wireless data transmission chip, enhanced with high-power PA and LNA chips, RF switches, and band-pass filters for full bidirectional RF communication, significantly extending the effective communication range. The module includes 5V tolerant inputs, allowing direct connection of SPI pins. This wireless module includes a small power SMD LED indicator. An onboard 3.3V voltage regulator accepts a 5V supply and provides 3.3V power to the attached NRF24L01+ module. Ideal for a wide range of applications including wireless remote control, sensor devices, RFID, smart grid, smart home systems, and wireless o. Specifications: 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 SMA Antenna 2.4G 1100m 2 x NRF24L01 Wireless Module Breakout Adapter Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3cm.