Custom Ai PCBA Manufacturer Semiconductor Telecommunication Offline Voice Recognition Tea Bar PCB. Customization Support: Supports custom conditions for tailored PCBA solutions. Flame Retardant Material: Constructed with FR-4 material meeting UL94 V-0 flame retardant standards. Comprehensive Testing: Includes electrical testing and flying probe tester verification. RoHS and ISO Certified: Complies with RoHS, ISO, and CE certification requirements. 1-Year Warranty: Covers all mechanical defects for a period of one year. Flexible Shipping Options: Available via air, sea, or other logistics methods. Optimized Audio Layout: Design principles ensure minimal distance between microphone and module for better signal quality. Wide Operating Voltage: Supports operating voltage range from 3V to 5.5V. AI high technology PCBA.