UGREEN USB External Sound Card, USB to 3.5MM Female Jack Audio Adapter - CM477 30757

* Noise Reduction For Clearer Sound, Faster Connection, More Stable Signal

* Function: music play and hands-free call *Support one-to-two function 

* Volume adjustment Button

* Input: Bluetooth 5.3

* Output: 3.5mm Audio, *Charging Port: USB-C(5.25V) 

* Frequency range:2.400GHz-2.483GHz ,

* Frequency Response: 20Hz-20kHz

* Output Voltage: >0.7Vrms

* SNR:≥90dB *Transmission distance: 15m/49ft (No Blocking) 

* Battery capacity: 3.7V/300mAh   *Operating Time: About 15 Hours

* Transform your home or car audio system to Bluetooth wireless

* High-Fidelity Stereo, Reliable & Solid + Led Indicator

* Hands-Free Calls Compatible with Car Speaker and Home Audio

* Stable Connection: with Bluetooth 5.0 technology, Bluetooth Range 10M

Operation Guide

1. Connect the Audio port with a 3.5 mm AUX plug.

2. Connect the power port with a USB plug.

3. Turn on the Bluetooth in your cell phone, then click to pair, which allows you to enjoy your music wirelessly

* Input: USB 2.0 A Male

* Output 1: 3.5mm Green port for earphone

* Output 2:3.5mm Red port for microphone

* Output 3: 3.5mm CTIA 4-pin combo mic/headphone jack

* Sampling rate :48KHz, 16 bit, SNR:≥85dB

* Frequency response: 20Hz-20KHz

* Functionality:

- Smooth volume control using the built-in knob

- Headphone mute button

- Microphone mute button

* SupPorts hot-swapping, no diver needed

* SupPorts Windows/MacOS/ Linux

* Dimensions: L74*W34*H15.5mm

Connect 5 Devices Simultaneously 

More Stable, Faster, Higher Sound Quality

High-Fidelity Audio

Farther Coverage, Compact Design, Support Win 7 8 10 11

Not Compatible with MACOS or Linux

* Stable Connection: with Bluetooth 5.0 technology, Bluetooth Range 10M

* 8 hours of battery life in transmit mode, 5 hours in receive mode, and the USB-C charging port ensures ultra-quick and ultra-convenient charging.

* Built-in Microphone, 

* Easy to Use ; Hands-Free Calls Compatible with Car Speaker and Home Audio

* Compact and Portable

* Connect the Audio port with a 3.5 mm AUX plug 

* Dual Pairing: SupPorts 2 Bluetooth Headsets, Allowing 2 people to share an audio signal 

Connect 7 Devices Simultaneously 

More Stable, Faster, Higher Sound Quality

High-Fidelity Audio

Farther Coverage, Compact Design, Support Win 7 8 10 11