
Hot-Selling D Shape Style Conference Simultaneous Interpretation Translation Tour Guide Earphone Headphone. Customizable Colors: Available in Black or customized colors to meet specific brand requirements. OEM/ODM Services: Full customization support for Color, Logo, and Package design. Fast Delivery for Large Orders: 10-15 days for 100k pieces; 20-30 days for 200k+ pieces. Strict Quality Control: All products are 100% tested before shipment with CE, RoHS, FCC, and SGS approval. Flexible Shipping Options: Samples via DHL/UPS/FedEx (4-7 days); Mass production by Air, Sea, or Land. Sample Orders Accepted: Sample orders and mixed samples are available for product testing. High Sensitivity: Sensitivity of 105dB +/-5dB at 1KHz ensures clear audio output. Wide Frequency Response: Frequency range from 20Hz to 20kHz for full-spectrum sound.