ASUS USB-BT500 Bluetooth 5.0 USB Adapter with Ultra Small Design, Backward compatible with Bluetooth 2.1/3.x/4.x - Micro Center
Bluetooth 2 Click
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TPA3116 4.2 Bluetooth 2.1 50W x 2 + 100W Amp Board with FM AUX-In and USB Media Player IR Remote
Sitecom — CN-516 — Micro Bluetooth 2.1 Adapter
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Creative T3250 Wireless - 2.1 Bluetooth Speaker System - Creative Labs (United States)
ASUS USB-BT500 USB 2.0 Bluetooth 5.0 USB Adapter with Ultra small Design, Backward compatible with Bluetooth 2.1/3.x/4.x - Newegg.com
Mini USB Bluetooth 2.1 Adapter - Class 1 - Bluetooth & Telecom Adapters
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Cyber Acoustics CA-SP34BT - Speaker system - for PC - 2.1-channel - wireless - Bluetooth - piano black | Dell USA
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iLive Bluetooth 2.1 Ch. Home Music System w/LED Lights, IHB23B, Black - Walmart.com
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Amazon.com: Bluetooth 2.1 Amplifier Board Bluetooth Speaker Modified Board 2x6W with Charge Management : Musical Instruments
Dayton Audio DTA-2.1BT2 100W 2.1 Class D Bluetooth Amplifier with Sub Frequency Adjustment
Portable Bluetooth 2.1 Boombox : 16 Steps (with Pictures) - Instructables
