Product Material: Plastic Size: 15x29mm Wide Power Voltage Range: 1.9~3.6V, typically 3.3V Average Emission Current: As low as 25mA (7dBm) Receiving Sensitivity: -96dBm@250kbps Maximum Output Power: +7dBm Interface: 10MHz Support Output: 1bit RSSI Operating Temperature: -20~85°C Color: Black Quantity: 5 pieces / 10 pieces Package Contents: 5 pieces / 10 pieces * communication module The 2.4GHz NRF24L01 is a single-chip radio transceiver for the worldwide 2.4 GHz ISM band. Applications: Wireless peripherals, remote control systems such as RC vehicles and consumer remote electronics, wireless voice transmission such as VoIP, wireless sensor networks, wireless networks, home and commercial automation. Dimensions: 15x29 mm, including: built-in 2.4GHz antenna, for easy implementation in designs without extra hardware. Feature: Auto-acknowledgement and automatic retransmission function. Establish Radio Transmission: Using these NRF24L01 modules, radio transmission can be established between two microcontrollers.