Frienda 5 Pieces I2C Display Module 0.91 Inch I2C Oled, White Display Color Product Details What will you get: there are 5 pieces OLED display module with classic display color, self-illuminated and no need backlight Power-saving display: the I2C oled display performs better than the traditional LCD display and with lower consumption the IIC (I2C communications) simplifies connections; Please note that these I2C OLED display module comes without pin headers More details: use compatible with Arduino, ESP8266, STM32, etc.; 3.35v Power; Operating temperature: -40 - 85 degree; Resolution: 128 x 32 Good compatibility: this i2c oled display module is compatible with Raspberry Pi 4B/3B+/3B/2B/Zero, compatible with Arduino, also compatible with ESP8266, STM32, etc. Product manual: as shown in the instructions Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.