High-concerned chemical: None Model Number: EWM103-WF8723DU Working Frequency:2.4GHz WiFi+bluetooth Dual-mode module Low-cost, high-performance WiFi+BT dual-mode module based on Realtek RTL8723DU-CG Compliant with IEEE 802.11b/g standards and bluetooth 4.2 protocol, with a maximum data rate of up to 150Mbps, rich interfaces and powerful processor, it provides a complete solution for integrated wireless LAN devices with high throughput performance. Low cost, high performance, flexible application RTL8723DU chip core 2.4GHz Supports the global license-free ISM 2.4GHz frequency band Driver Free Provides a complete solution for integrated wireless LAN devices with high throughput performance Color: Blue Material: PCB Package Contents: 1 * RTL8723DU WIFI BLE Dual Mode 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.