Bluetooth Music Audio Receiver Adapter - Portable Wireless Dongle for Home Audio Streaming on your Docking Station / Speaker - Bluetooth 4.1 & aptX Enabled RESURRECT YOUR BOSE SOUNDDOCK - Works with 99% of old Iphone / Ipod docking stations / speakers to include Bose 1st and 2nd Gen SoundDock (and all other Bose generations), Also works with a range of other speakers Eg JBL, Sony, Pure, IWANTIT, Amazon Echo etc UPGRADED BLUETOOTH TO 4.0 - 4.1 + EDR. IDC have upgraded the i4 to the latest version Bluetooth CSR chipset for the highest performance and audio quality on the market. Longer range, quicker pairing, lower power consumption, crisp clean audio just to name a few features. COMPATIBLE WITH ALL APPLE ANDROID PRODUCTS - Use with your Iphone 7, 7 Plus, 6, 6s, 5, 5s, 4, 3 etc iPad, Ipods etc - All other Apple products and Android devices, Samsung Galaxy, HTC, Nokia, LG etc. APTX ENABLED FOR SUPERIOR SOUND - The i4 is aptX enabled which will enhance the sound quality. The aptX audio codec is for real-time streaming of loss less stereo audio over Bluetooth A2DP. The i4 is a premium receiver with the latest chip set for the best possible sound quality. AUTO PAIR FUNCTION - Just pair once and never pair again. Remembers up to 8 devices pairing within seconds. Why waste 100's buying a new Bluetooth Speaker / Dock, Buy the i4. The i4 Supports all media Apps like Spotify Youtube etc! Full 1 YEAR WARRANTY and phone support.