Add Bluetooth to devices with FiiO's HiFi portable receiver on sale for $22

[iMore.com]

Uses a premium Qualcomm Bluetooth chip and amplifier. Supports Bluetooth 4.1 and audio codecs like aptX, SBC, and AAC. Has independent volume controls and a built-in mic. Lasts up to 9 hours, has NFC pairing, and can access Siri.

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