Here's the polished text: xx(1) Operating voltage: 1.8V-3.6V, with 3.3V recommended.xx xx(2) Operates in the 433MHz band, license-free.xx xx(3) High operating rate of 500kbps, supporting 2-GFSK and MSK modulation.xx xx(4) Software-modifiable rate parameters to better meet customer requirements under various operating conditions.xx x xxHigh rate:xx Enables faster data transmission. x xxLow rate:xx Provides stronger anti-interference and penetration capabilities, increasing transmission distance. xxFeatures:xx x High sensitivity (-110dBm at 1.2Kbps, 1 percent packet BER). x Built-in hardware error detection and point-to-multipoint communication address control. x Low current consumption (15.6mA in RX, 2.4Kbps, 433MHz). x Programmable output power control up to and10dBm for all supported frequencies. x Wireless function, supporting low-power electromagnetic wave activation to wirelessly wake the device from a low-power sleep state. x Supports automatic channel clearance access (CCA) before transmission, enabling a carrier-sense system. x Fast frequency change synthesizer for implementing frequency hopping systems. x Module allows software-set addresses, making software programming very convenient. x Standard DIP pitch interface for embedded applications. x Separate 64-byte RX and TX data buffers. x Actual transmission distance of 200 meters or more in an open area (depending on the specific environment, communication rate, etc.). xxSpecifications:xx x Material: PCB x Color: As shown xxPackage Contents:xx x 1 x Module xxNote:xx Other products are not included. Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement error allowed is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store