N40-4.0''
This is a small size but powerful electric bicycle central controller, support multimedia playback,
GPS navigation, SOS positioning and other functions.
Features
1, 4"
high definition IPS screen
2,
Waterproof(IP65 protect level)
3,
Support voice control(alexa service or others)
4, Automatically match phones, play mobile media, sync calls, etc.

OEM Services
•Logo silk printing & laser carving
on shell(plastic/metal), Touch panel(with MOQ 5000pcs) and Accessories(pack box/user manual/warranty card/power adapter/protective case,etc.);
•System customization(boot animation/wallpaper/system discription/software rename/pre-insall Apps etc.)
ODM Services
After-sale Service
•1-year
warranty
for all products(excluding accessories). Any quality issue(excluding wrong operation or other human factors) can get repaired or components replaced.•If customers solves the after-sale
problems on
their own,
Pretech will
give full technical support and advice on repair or replacement.If necessary, we will send technician to help.•Technial
support for whole life of our products.FAQ

Q: How to get samples?
A:
We do not provide free samples. If you want samples for test, please tell us your company background, the details of your related projects and the purchasing plan, thanks. We will evaluate and decide to provide samples.Q: How can I get price list?
A:
Please send us offers with full contact information(email/phone number, etc.), we will contact you.Q: How to start my ODM projects?
A: First, pease give us a full introduction of the projects, including product type, application, and other special requirement. Then we will send you the project investigation table to fill, with this table received from you, we will evaluate, make the BOM and give you solution and quotation. In all, we should be very patient and understand each other with full communication.Q: How to make the payment?
A:
For an order, usually we require 30%~50% down payment, and the balance should be paid before delivery by T/T, Westunion, Paypal, or L/C at sight.