Ultra-Low Power Consumption: In transmit mode, the operating current is only 26 mA. High Performance: The transmit power is 14dBm @868/915MHz; -136.5dBm sensitivity for SF12 with 125KHz Long-Distance Communication: from a 158dB link budget to a seamless connection over extended distances. Abundant peripherals: Equipped with a variety of GPIO interfaces like UART, I2C, and ADC, this module offers great flexibility for developers looking to expand peripherals. Easy to Use: Has built-in AT firmware and supports custom product development using an SDK. (Different batches may have different silk-screen words, which not affect the use) Color:As Shown Material:Plastic Package Contents: 1 * Wireless Module 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.