Wireless Module Condition: Operating frequency:(Module:387-464MHZ) Working voltage :1.8-3.6V Instantaneous maximum working current: 30ma Features: Maximum transmit power: 10mW (+10dBm) 315/433/868/915MHZ ISM band Support 2-FSK, GFSK and MSK modulation Receiver sensitivity -110dBm at 1200 baud Minimum operating speed 1.2kbps, the highest 500kbps Separate 64-byte RX and TX data FIFO buffer Built-in hardware CRC error detection ensures reliable data transmission Support RSSI signal strength detection and carrier sense function Low power consumption Operating frequency can be programmed via SPI Programmable output power, for all the support frequencies up to +10 dBm WOR feature can be set to standby, the proportion receiving state timer switch time to reduce power consumption Fast frequency synthesizer with proper frequency hopping system Colour:Blue & Black Material:Metal + Plastic The actual product may have slight color difference or difference, which will not affect the use Package Contents: 10 * CC1101 Wireless Module 10 * Short stick Only the above package content, other products are not included. Note: Light reflection 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.