Hello
I used DHGate
Where they list like that for example :
Wholesale - 20pcs/lot Bluetooth Serial Transceiver Module Base Board For HC-06 or Ard uino MEGA 2560 UNO A103 etc 3
Sold by wcr0306 20 Pieces / Lot
Qty (Lot) Price/Lot
1 - 7 US $45.23
8 + US $41.68
1, 18 items found for wholesale Micro HD Cam
10 build in a pen (from 7,5 usd),
one in a key, 26,5 usd
2 in an usb , 17 usd
1 lighter, 38 usd
1 just a camera New wired + 2.4 G wireless HD mini Audio camera security micro camera 600TVL SPY CAM 38
and 3 with reciver from 84 usd
2, 108 items found for wholesale Bluetooth transceiver module from 2 usd a piece
3, 2,574 items found for wholesale lights indicator from 0,1 usd in different colors and style
4, 443 items found for wholesale Memory Chip from 0,38 USD a piece
5, Rechargeable Battery has almost 18k supplier from 0,4 USD a piece
6, White led lights has more then 86k supplier and different types depends on your need ranging from 0.01 USD piece
7, 177 items found for wholesale Micro USB charging port from 0.13 usd a piece
All free shipping wordwide with shipping cost there are many more supplier
For giving a more conceret price quote need more information on the products you woul like
Regards