NRF24L01is 2.4GHz ISM band transceiver for , which has the abilities of auto-acknowledge and auto-retransmit and support up to six channels of data reception.NRF24L01+ ModuleHigh-performance wireless data transmission chip NRF24L01 +, an increase of high- PA and LNA chips, RF switches, band-pass filters and other full bidirectional RF, making the effective communication distance has been greatly expanded.NRF24L01The module has 5V tolerant inputs which allows for direct connection of SPI pins to the for .Wireless ModuleSmall on SMD LED indicator; On-board 3.3V voltage regulator accepts your for +5V supply and provides 3.3V for the attached "nRF24L01+" module.Widly ApplicationsIt can be wildly used to wireless remote control, somatosensory devices, RFID, NFC, smart grid, , wireless audio etc.specification:PA Gain:20dBLNA Gain:10dBFrequence: 2.4GHz~2.5GHzRange: 800+ meters line of sightMulti-frequency: 125 frequencyTransmit Operating Current(Max):115mAReceiving Operating Current(Max):45mAOperating Voltage: 3 ~ 3.6V (Recommended 3.3V)Colour:blackMaterial:Plastic + MetalPackage Contents:2 * NRF24L01+PA+LNA Wireless Transceiver RF Transceiver Module2 * SMA Antenna SMA Antenna 2.4G 1100m2 * NRF24L01 Wireless Module Breakout AdapterOnly 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 +/- 1-3cm.