433MHz ISM band. Supports 2-GFSK and MSK modulation. Receiver sensitivity of -110dBm at 1200 baud. Minimum operating speed 1.2kbps, maximum 500kbps. Features separate 64-byte RX and TX data buffers. Built-in hardware error detection for reliable data transmission. Supports RSSI signal strength detection and carrier sense function. Low power consumption. Operating frequency can be programmed via SPI interface. Programmable output power up to +10 dBm across supported frequencies. WOR feature allows standby mode with periodic receive state switching to reduce power consumption. Fast frequency synthesizer compatible with frequency hopping systems. Wireless Module Condition: New Operating frequency: 387-464MHz (module dependent) Working voltage: 1.8-3.6V Instantaneous maximum working current: 30mA Maximum transmit power: 10mW (+10dBm) Color: Blue + Black Material: Metal + Plastic Note: Appearance may vary slightly between production batches, but functionality remains unchanged. Package Contents: 10 x CC1101 Wireless Module (with 10 pcs long antenna) Only the above items are included; other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement error allowance: +/- 1-3cm.