Shenzhen factory
Phone, tablet, speaker, camera and charger programmes usually start from a catalogue pogo pin, magnetic connector, USB cable or video lead, then change pitch, length or overmold to the device.
Yes. Send the QH88 model that is closest, plus the device drawing. OEM and ODM builds are quoted from that package.
The drawing, the quantity and the materials. The factory replies with price and lead time after those are known.
Samples are usually 3 to 7 days, and bulk orders 5 to 15 days, depending on quantity. Confirm the date on the quotation.