YJ-17029 module is based on nRF52832 Soc and PA (power amplification), it can be long distance for transmitter . The nRF52832 SoC is a powerful, highly flexible ultra-low power multiprotocol SoC ideally suited for Bluetooth® low energy (previously called Bluetooth Smart), ANT and 2.4GHz ultra low-power wireless applications. The nRF52832 SoC is built around a 32-bit ARM® Cortex™-M4F CPU with 512kB + 64kB RAM. The embedded 2.4GHz transceiver supports Bluetooth low energy, ANT and proprietary 2.4 GHz protocol stack. It is on air compatible with the nRF51 Series, nRF24L and nRF24AP Series products from Nordic Semiconductor. Processing power :Multiprotocol radio(bluetooth low energy,ANT,2.4G proprietary);Power efficiency ;Long distance ;PA (power amplification) Hardware module :SWD programmer (SWDIO,SWCLK,VDD,GND);nRF52832 QFAA;Size :20mm*15mm;BLE stack & RF 2.4Ghz;PA (power amplification); Color: Black Material: plastic Package Contents: 1*nRF52832 Bluetooth Ble 5.0 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.