2 Pcs QKZ ZAX2 Professional Wired Ergonomic In-Ear HIFI Stereo Headphones Intrauricular Headphones for Running, and Sports with Subwoofer, HD Condenser Microphone, and Professional Grade Sound Quality High-quality Wired Ergonomic In-Ear Headphones with Subwoofer, and Professional Grade Sound Quality (HI-RES AUDIO certificate). This model of headphones has a Design with a connectable or detachable cable. It can be upgraded to QKZ TWS Wireless Bluetooth modules (to buy in addition). Compatible with Multiple devices with 3.5 plugs (Mobile Phones, laptops, Pc, Tablets, Wireless Microphones, etc.) Description 1. Product type: Intrauricular Headphones 2. Plug: 3.5 mm 3. Impedance: 17 Ohms 4. Sensitivity: 109dB 5. Frequency response range: 10hz-20khz 6. Horn diameter: 10 mm 7. Cable length: 1.2 meters 8. Headphone Cable Material: TPE 9. Weight: 50 g 10. High Definition Wired Ergonomic Headphones with Subwoofer, HD Condenser Microphone, and Professional Sound Quality. Compatible with multiple devices with 3.5 plugs (mobile phones, laptops, PCs, tablets, wireless microphones, etc.). 11. This model of headphones has a Design with a connectable or detachable cable. It can be upgraded to QKZ TWS Wireless Bluetooth modules (to buy in addition). C E, HI-RES AUDIO certified Package 2 pcs QKZ ZAX2 (Contact me to tell me the 2 preferred colors) ATTENTION: This Earphone is available in different colors, Black, Dazzling Green, Rose Gold, and Gray. Before making your purchase, Contact us to check the availability and your favorite color. Thank you. Notice to the buyer: Before proceeding to payment with Paypal, make sure to enter the correct address for shipping. We do not accept shipping addresses other than those indicated in the Paypal purchase order. So, make sure the email associated with your Paypal account is active, we will need it to send shipping and invoice notifications. We take care to send the pre-invoice before shipment by legal email you must accept strictly. Be sure to provide an active mobile number that will serve the courier for the delivery of your package. If the email address is inactive and we do not receive your response by accepting the pre-invoice, we will consider the purchase transaction without confirmation to continue shipping the items. "FREE SHIPPING" for the following destinations: Europe (The following destinations are not included in "Free Shipping": Albania, Andorra, Armenia, Azerbaijan, Bosnia, Georgia, Iceland, Kazakhstan, Liechtenstein, Macedonia, Monaco, and Montenegro). Australia - Japan - United Kingdom - Mexico - Germany - USA The shipment will be an international economic courier and It can take 5 to 20 business days (depending on the destination) to arrive. The shipment is completely traceable. Therefore, the buyer will be sent a message with the link of the courier who was entrusted with the shipment and the tracking number, to verify the package. Attention: For all other destinations not listed, please contact us to evaluate together the cost of shipping, islands included. We will try, where possible, to satisfy you.