[NRF24L01]is 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+ Module]High-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.[NRF24L01]The module has 5V tolerant inputs which allows for direct connection of SPI pins to the for .[Wireless Module]Small 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 Applications]It 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~2.5GHz Range: 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.