If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. In-ear Earphone PCBA, From PCB Fabrication to Final AssemblyType: consumer electronics pcba Model Number: 4 Material: FR-4 Board Thickness: 1.6mm Layer: 1-32 Layers Supplier Type: factory Surface Finishing: HASL Related products: Electric Mobility PCBA Electric Scooter PCBA Battery Management PCBA Motor Control PCBA Charging & Power PCBA [contact-form-7 id="263" title="Product-InquiryForm"]