3pcs DT-Light Intelligent 2 Generation Development Board Built in APP and Cloud Service WiFi Signal Amplifier WiFi Repeater for Ardunio NODEMCU Eclipse : Amazon.in: Electronics
LiteFi 1 | ESP8266 WiFi Repeater from Qortex on Tindie
ESP8266-Based WiFi Repeater Runs for Three Days on a Single Charge - Hackster.io