If you want to make your wireless communication system with low cost, this Wireless ceiver module is the most suitable module to choose! It can achieve a good balance between wireless ition performance and cost! You can easily with your own MCU/ARM/PIC/AVR/STM32 system! What's more, this NRF24L01+ module is designed with power amplifier and SMA antenna, this allowed you the wireless communication up to 800+ meters! (No barrier) A host microcontroller can communicate and configure the nRF24L01+ over a 4-pin Serial Peripheral Interface (SPI). The configuration registers are accessible via the SPI connection. Configurable parameters include channel frequency (125 selectable channels), output power, and data rate (data rates: 250kbps, 1Mbps, and 2Mbps). The on-chip voltage regulator accepts supply voltages from 1.9 to 3.6V. The module has 5V tolerant inputs that allow for direct connection of SPI pins to the (compatible with) for arduinoIDE. Internal filtering results in high margins of meeting RF regulatory standards. The module radio uses Gauss Frequency-Shift Keying (GFSK) modulation as well as fast Automatic Gain Control (AGC). The module contains an Interrupt Request () pin that can be used to wake the host microcontroller, (ex: for ArduinoIDE), from sleep when the module receives a mission providing great energy savings in battery power devices. Range: 800+ meters line of sight Frequency: 2.4GHz ~ 2.5GHz Working Voltage: 3~3.6V Max Max Current: 115mA Multi-frequency: 125 frequency Colour: black Material: PCB+plastic+metal Package Contents: 4 * Wireless Module 4 * Antenna 4 * NRF24L01 Wireless Module Breakout Adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!