How to find the Product Name, Model No., Batch/Lot No. on your device?

For most electronic products, usually you can find the Product Name, Model No., Batch/Lot Nofrom the silkscreen at the bottom of the device, on the right / left / back side of the device, or at the inside of the device. For example: 

1. Bluetooth Headphones:











2. Bluetooth Adapters: 







 3. Bluetooth Speakers: 




4. Bluetooth Car-kit: 




5. Charger: 





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