Fiio Btr3k-Bluetooth 5.0ヘッドセット,hi-fi,USB,dac,ak4377a,qualcomm csr8675,hd,ldac,aptx,2.5mm,3.5mm _ - AliExpress Mobile
FIIO BTA30 PRO Récepteur / Émetteur Bluetooth 5.0 CSR8675 DAC ES9038Q2M aptX-HD LDAC 32bit 384kHz - Audiophonics
Amazon.co.jp: FiiO UTWS3 Bluetooth V5.0 aptX/TWS + Earphone Hook mmcx / Connector with Mic Support / 30 hours Playback and APP Control of WestoneUM3XRC W4RNF Audio NF2FiiO EA3FH1 : Electronics