NRF24L01 is a 2.4 GHz ISM band transceiver with auto-acknowledge and auto-retransmit capabilities, supporting up to six data reception channels. NRF24L01+ Module features a high-performance wireless data transmission chip with integrated high-power PA and LNA, RF switches, and band-pass filters for enhanced bidirectional RF performance, extending effective communication range. The module has 5V-tolerant inputs, enabling direct SPI connection to microcontrollers. Wireless Module includes a low-power SMD LED indicator; onboard 3.3V voltage regulator accepts 5V input and supplies stable 3.3V power to the nRF24L01+ module. Wide Applications: wireless remote control, sensor devices, smart home systems, wireless audio, and other IoT applications. Specifications: PA Gain: 20 dB LNA Gain: 10 dB Frequency Range: 2.4 GHz – 2.5 GHz Maximum Line-of-Sight Range: 800+ meters Number of Channels: 125 Transmit Current (Max): 115 mA Receive Current (Max): 45 mA Operating Voltage: 3.0 V – 3.6 V (recommended: 3.3 V) Color: Black Material: Plastic + Metal Package Contents: - 2 × NRF24L01+PA+LNA Wireless Transceiver RF Module - 2 × SMA Antenna (2.4 GHz, up to 1100 m range) - 2 × NRF24L01 Wireless Module Breakout Adapter Note: This package includes only the items listed above. Other accessories are not included. Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.