NEW BQEYZ Spring2 Earphones Triple Hybrid 1BA 1DD Piezoelectric IEM HiFi Monitor Sports Earbud BQ3 KC2 T4 Spring 2 Spring 1 P1|EarphonesBQEYZ Spring 2 In Ear Earphones Triple Hybrid BA Dynamic Driver Piezoelectric IEM HiFi Monitor Running Sports Earbud with Detachable CableSpecification: 1. Item: Spring 22. Dynamic Driver: 13mm 3. Impedance: 32 4. Sensitivity: 110 dB 5. Frequency: 7-40KHz 6. Cable Length: 1.2m 7. Pin Type: 0.78mm-2 Pin 8. Plug Type: 3.5mm\ 2.5mm\ 4.4mm,optional 9. Driver units: 13mm Coaxial dynamic driver+9 Layers piezo electric+Balanced armature 10. Contents: Spring 2 earphone, Cable, Carrying Case, Brush, Memory foam, Atmosphere and Reference silicone ear tips of 3 types of tips in different sizes. Alway something that fits your ears and sonic tastes.?Description: 1. The CNC aluminum material used in the outer shell, the same Spring 1 bottom cover, using a new cavity, the face cover is slightly changed, it will be more comfortable to wear; 2. The internal unit uses a new 13mm coaxial speaker and 9 layers of piezoelectric ceramics; 3. In terms of sound quality, the overall sound field is larger, the low-frequency rebound will be more intense, the mid-frequency vocals are clearer, and the high frequencies still have our characteristics. They are not harsh, and the extension is better.?Shipment: 1.Items will be shipped to your Aliexpress profile address, Please ensure that your shipping address is full and correct.? 2. Orders are shipped in default by AliExpress Standard Shipping. about 10-30 working days to most countries & areas. For remote countries, it will be much more longer time to arrive. Please understand 3. Any problem, please feel free to before you leave a feedback, we will do our best to resolve it. Thank youReturn policy: 1. In case that you're not satisfied with the product while it is in good condition, please return it within 15 days, and buyer pays for the return shipping fees. Then We will either send you a new one or give your money back.? 2. In case that the product you received were defective,please return it within 15 days, we can either give your money back or send a replacement to you.?Feedback: 1. Your satisfaction and positive feedback is very important , please leave positive feedback and 5 stars if you are satisfied with our items and service.? 2. If you have any problems about our items and service, please do not hesitate and feel free to before you leave negative feedback. We will do our best to solve any problem and provide you the best customer service. 3. Have a nice shopping