PAN1740-ETU - 

PAN1740 Series Bluetooth 4.1 Smart Modules
The PAN1740 is a short-range, Class 2, BLE single-mode wireless module for integrating Bluetooth functionality into systems requiring low power consumption. Low low-power sleep modes are available and short transition times between operating modes further reduce power consumption. PAN1740 complies with Bluetooth version 4.1 standard resulting in significant performance improvements over 4.0 modules: Bluetooth 4.1 and 4G (LTE) can now coexist without interference. A reconnection timeout can be specified improving battery life. The device can act as hub and endpoint simultaneously removing the need for a host.