The NRF24L01 is a 2.4GHz band transceiver with auto-acknowledge and auto-retransmit capabilities, supporting up to six channels of data. The NRF24L01+ module features a high-performance wireless data transmission chip with enhanced PA and LNA, RF switches, band-pass filters, and full bidirectional RF support, significantly extending communication range. This module includes 5V tolerant inputs, allowing direct connection of SPI pins to microcontrollers. The compact wireless module includes an SMD LED indicator. An onboard 3.3V voltage regulator supports a 5V input supply and provides stable 3.3V power to the attached nRF24L01+ module. Ideal for various applications including wireless remote control, sensor devices, RFID, smart grid systems, and wireless audio transmission. Specifications: PA Gain: 20dB LNA Gain: 10dB Frequency: 2.4GHz ~ 2.5GHz Range: Over 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 (1100mm) 2 x NRF24L01 Wireless Module Breakout Adapter Note: Light and display settings may cause slight color variations compared to the actual product. Measurement error allowance is +/- 1-3cm.