Low working voltage: 1.9~3.6V low voltage operation High rate: 2Mbps, because the air transmission time is very short, greatly reducing the collision phenomenon in wireless transmission Multi-frequency points: 125 frequency points, meeting the needs of multi-point communication and frequency hopping communication Ultra-small: built-in 2.4GHz antenna, small size, 15x29mm (including antenna) Low power consumption: When working in response mode communication, fast air transmission and start-up time greatly reduce current consumption. This is a single-chip transceiver chip that works in the 2.4-2.5GHz universal ISM frequency band. The wireless transceiver includes: frequency generator enhanced SchockBurstTM mode controller power amplifier crystal amplifier demodulator output power channel selection and protocol The setting can be set through the SPI interface. Very low current consumption. When working in the transmitting mode, the current consumption is 9.0mA when the transmitting power is 6dBm. The receiving mode is 12.3mA in power-down mode and the current consumption mode is lower in standby mode. size: 28.5x15.2mm Material:plastic colour:Black Package Contents: 10 x wireless module Only 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.