60HZ, 150HZ, 400HZ, 1KHZ, 3KHZ, 6.5KHZ, 15KHZ, Composed of TI or ST original TL074
Preamplifier Gain: 4580 classic operational amplifier provides 5x amplification (14db);
The amplifier part of the Earphone adopts the 47 type earphone driver circuit composed of NE5532, Which can easily drive all types of earphones;
Input impedance 20K, output impedance 600 Ω;
The 3.5mm input interface supports a 4-pole plug, and the output is connected to a headset with a microphone. Normal voice calls can be made on the mobile phone. Another terminal with a lotus interface is available;
Power Supply:
Between DC5V-12V, the interface Specification is 5.5 * 2.1mm.
The Static Current of 5V Power Supply is about 390ma, and that of 12V Power Supply is about 140ma.
Tips:
Input 3.5 cannot be the same as lotus mouth, only one can be selected
Output 3.5 and lotus mouth can be used at the same time
Tips:
You can use the power bank or high-quality charging head for power supply. Poor charging head power supply may have AC sound.
Package
1pc Host+USB DC cable
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If you can't receive the product within 2 months (60 days), please contact with us,we promise to payback 100% of your money.
We ensure our products work normally before post.If the products is broken before arrival to you,all you should do is taking a photo to show us our broken product.We promise to payback 100% of your money. - If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.
- If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
1. We ship to Worldwide.
2. We only ship to confirmed PAYPAL address; your PAYPAL address must match your Shipping address.
3. Any non-received items caused by invalid address registered on PayPal are not in our full refund or replacement policy. Shipping fee has including the local handing and packaging fee.
4. All the items will be shipping within 1-2 working days after receiving the payment, except some holidays.
5. We will not be responsible for any custom delay or tax, because transit time is highly depended and provided by postal Service.
6. If you have any problem, please contact us via message, we will reply message within 1-2 working days, please wait for patient.
- We only accept payment through Paypal.
Items will go to post within 1-2 business days after payment confirmed.
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Am 21.11.2023 hat der Verkäufer die folgenden Angaben hinzugefügt: