Product Introduction:
Mini PCM2704 USB sound card / DAC decoder board ， size : 12 * 49MM ( including terminals ) .
USB powered ， analog output directly plugged into the computer 's USB port， eliminating the need for connection.
BB's main chip PCM2704 USB decoder chip HIFI level ， its performance is superior to low-end market， the most commonly used chip CM102S series ， power supply with USB power supply ， the output can be directly connected to the headset ， but also do pre- Digital outputs can be the DAC more advanced decoder provides SPDIF digital signals to obtain better sound quality due to the external sound card ， within the enclosure to avoid serious electromagnetic interference ， SNR and sound quality can be improved.
PCM2704 is a monolithic digital-analog converter chip . It has two output channels and digital-analog converter with an integrated USB interface controller. Interface complies with USB1.1 standard .PCM2704 can receive 48KHz， 44KHz and 32KHz sampling rate ， 16-bit stereo or mono audio data integration software chip volume and mute functions ， can be synchronized adjust the volume and mute the computer .

Shipping & Delivery

We ship to international via China Post Airmail or Hong Kong Post Airmail， and every parcel will be registered with tracking number. We can also ship by UPS/EMS/DHL/FedEx for alternative shipping method for corresponding fees. Please email your postal code for shipping quote. International customers may experience delays by customs or national post providers. Review your duty-free limits. Please let us know before payment if you need split shipment.

Time of Delivery

The time to ship to international via China Post Airmail or Hong Kong Post Airmail quite depends on diffrent desination of the world， it is also subject to change due to the local weather conditions， postal policy and custom checking. Base on the postal Air mail rules and our experience， kindly please be noted that To United States / United Kingdom / Australia， it takes around 10-15 business days; To Canada， it takes around 12-18 business days; To Brazil / South America， it takes around 25-35 days. To Italy / France / Spain / Germany/ Eastern Europe， it takes aournd 15-20 business days.

Returns & Replacements & Repair

We accept returns & replacements within 7 days from the day the customer receive the products， please make first contact within 7 days from receiving the order. Products should be returned in original condition. As a benefit to our customers， we also provide repair within 3 months from the day when this item is shipped out， after repair is done， we will send you the item， but the customer should pay both shipping ways.