[NRF24L01] is a 2.4GHz band transceiver with auto-acknowledge and auto-retransmit capabilities, supporting up to six channels of data. [NRF24L01+ Module] High-performance wireless data transmission chip NRF24L01+, featuring increased PA and LNA, RF switches, band-pass filters, and other professional full bidirectional RF components, significantly extending effective communication distance. [NRF24L01] The module has 5V tolerant inputs, allowing direct connection of SPI pins. [Wireless Module] Features a small SMD LED indicator; onboard 3.3V voltage regulator accepts 5V supply and provides 3.3V for the attached "nRF24L01+" module. [Widely Applications] Suitable for wireless remote control, sensing 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 Transceiver Module 2 x Antenna 2.4G 1100m 2 x NRF24L01 Wireless Module Breakout Adapter Only the above package content is included; other products are not included. Note: Light and different displays may cause the color of the item to vary slightly from the real thing. Measurement allowed error is +/- 1-3cm.