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Amplifier Wireless Bluetooth Audio Receiver Module Bluetooth Power Module 5.0 QCC5125 APTX Dual Lossless Band Talk Function4.9/5.0·80 reviews·"exceptional customer service"
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TTGO LoRa32 V2.1 ESP32 OLED 0.96 inch Bluetooth WIFI wireless module
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New and original IC RN41-I/RM Bluetooth v2.1+EDR RF transceiver module 2.4GHz integrated RN41
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VIRE 108BT Mp3 Audio Amplifier Circuit Board TF USB Bluetooth MP3 Module4.5/5.0·45 reviews·"excellent service"
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About bluetooth module v2.1
51 bluetooth module v2.1 products are offered for sale by suppliers on Alibaba.com, of which development boards, electronic modules and kits accounts for 21%, other ics accounts for 11%, and bluetooth modules accounts for 9%.
A wide variety of bluetooth module v2.1 options are available to you, You can also choose from esp32, bluetooth module v2.1,