Product Name: Multy-Functional Long Range Walky Talky Earphone Y05 Model NO.: earphone Y05 Jack Type: 3.5mm Function: Multimedia Type: Electrostatic Headphones Color: Black Wire Material: PU Usge: for Walkie Talkie Ptt: Press to Talk Button, Built in Microphone Style: Handheld Microphone: With Microphone Use: Walkie Talkies Transport Package: Each Piece in One Standard Bag Origin: Fujian Product Description Multy-functional long range walky talky earphone Y05FMicrophoneSensitivity: -40dB± 3dBImpedance: 2.2KΩ Frequency range: 20-20KHzOperating voltage: 1.1-10VSpekerSensitivity: 115dB± 10%Impedance: 32Ω ± 15%Rated Pwr: 300mWMax input Pwr: 500mWFrequency range: F0-4KOur factory offer OEM service, We look forwards to have an opportunity to cooperate with your esteemed companyDelivery Time: 3-5 days via DHL. EMS, UPS, TNT, FEDEX ExpressPayment: T/T, Western union, PaypalWarranty: 12 MonthsOur Services1. Reply your enquiry in 24 working hours. 2. Experienced staffs answer all your questions in professional and fluent English. 3. Customized design is available. OEM is welcomed. 4. Exclusive and unique solution can be provided to our customer by your our well-trained and professional engineers and staffs. 5. Special discount and protection of sales area provided to your distributor. 6. Do the best products and design the personalized items for our customers. If you are interested in any of our Walkie Talkie earphone, please feel free to contact me. I will reply to you in 24 hours, thanks.