2pcs lot Free shipping Wifi GPS wireless development board A20 ESP8285

WiFi + GPRS Combo;

Size 22.80 × 19.80mm; Operating temperature -30c to + 80c; Operating voltage 3.3V-4.2V; Boot voltage> 3.4V; Power supply: DC 5V 1A; Support GSM / GPRS four frequency bands, including 850, 900, 1800, 1900MHz; Support China Mobile China Unicom’s 2G and the global GSM network; Support serial port and network communication; Support SMS messages; Support camera, picture compression format: JPEG standard; Image resolution: VGA (640 * 480), QBGA (320 * 40), QQBGA (160 * 120), can be set through the serial port instruction; Support for transmission of pictures, the maximum speed of 16KB / S; Support for external 300,000 pixel camera; GPRS Class 10; Sensitivity <-105; Built-in ESP8285 WiFi chip, support WiFi chip secondary development; Support GPRS data services, the maximum data rate, download 85.6Kbps, upload 42.8Kbps; Support for digital audio and analog audio, support HR, FR, EFR, AMR voice coding; Support ROHS, FCC, CE, CTA certification

• We accept Escrow only, it is fast, easy and safe.
• Payment must be completed within 7 days.

• We Ship to Worldwide

• Items will be shipped within 2 business day on payment received.

• Items will be marked as ” Gift ” in low value.

• Items are shipped via China Post/Hong Post Air Mail.

• The Delivery time will take 12-35 Business Days. It according to the Destination Country.

1. You have 7 days to contact us and 30 days to return it from the date it was received.

2. Both Replacement and Money Return are accept. Return shipping fee afford with buyer.

3. 12 months Manufacturer’s limited warranty for defective items(excluding Man-made damage).Accessories come with a 3-month warranty.

4. Defective item MUST BE reported and returned within the warranty period.

5.We maintain high standards of excellence and strive for 100% customer satisfaction. Feedback is very important,We hope you can contact us immediately before you give us neutral or negative feedback.

6.If you have any questions, our Customer Service staffs welcome you to email or call us. We strive to answer all questions and resolve any problems as quickly as possible