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Amazon | KOKKIA i10L_Pro_plus_2MarathonS: DIGITAL i10L_Pro Bluetooth Splitter Transmitter for iPhone,iPad,iPod Touch with Lightning Connector PLUS 2 Tiny MarathonS FastStream/aptX/SBC Bluetooth Stereo Headsets | KOKKIA | Bluetoothトランスミッタ
Amazon.co.jp: UGREEN 5.3 Bluetooth Receiver, 0.1 inch (3.5 mm) Receiver, SBC/AAC for Cars, AUX, iPhone, Android, Car Audio, Compo, Smartphone, Tablet, Type-C Charging, TELEC Certification Number: R217-220610, Use While Charging, Communication Distance