Etekcity via Amazon has a Wireless Bluetooth 4.0 and NFC Receiver Audio Adapter for $15.99 after coupon code 3BJE8X4J at checkout. Not a huge discount, but still a good deal on a highly rated #1 selling adapter on Amazon. Turns any receiver or even just stand alone powered speakers into Bluetooth or NFC streaming capable.
Listing description:
- STREAM WIRELESSLY: Enables traditional speakers with 4.0 bluetooth for wireless audio streaming from a range of 33 feet.
- VERSATILE EXTENSION: Easily adapt via A/V, RCA, and 3.5mm jack input. Plays well with home theaters, stereo systems, and car stereos.
- NFC-CAPABILITY: Amplify the audio of your NFC-capable smart devices with a simple hand gesture. Simply touch your smartphone or tablet to the bluetooth adapter and connect.
- RAPID RECHARGE: Runs for an extended period of up to 10 hours on a full charge. No interruptions, no problems.
- MINI DESIGN: Compact and lightweight build to easily tuck away and take on your travel. 1 year warranty included by Etekcity