The devices with Bluetooth module have to compliant to the RED directive of CE if you want to forward to European countries. It contains the testing items as below: CE-LVD, CE-EMC, RF tests, Healthy Assessment report, ROHS 2.0, SVHC (Reach) Some other devices with Battery or cells need also compliant the IEC/EN 62133 Safety standard, and there are still some special products need compliance with the UN38.3 Clause. This is Alice, I have 8years+ experiences in the tests and certification for products Application. We LCS testing laboratory founded in 2004, and have 16+years experiences in this field. We're sure that our services can make you satisfied.