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Sony Headphone internal codes and Bluetooth SoCs

Sony WF-1000X teardown
Sony WF-1000X BT

In a previous article I outlined many of the current and past Walkman model internal codes Sony uses.  While the Walkman models use ICX for their prefix, the headphones use HDX. I will try to keep this updated with the latest information but it is not always possible to find the code, the Bluetooth chip or both.

Sony WH-CH510
Sony WH-CH510
Most of the information is from FCC documents, Bluetooth certifications, Apple Certifications, Country specific certifications, and from teardowns. Not all of the data in the table is complete and there will be gaps.

Here are the list of the Bluetooth SoCs Sony has used for the past few years in their headphones. I used to have links to the chip pages, but many stopped working, so I removed the links.

  • Qualcomm CSR8675
  • Qualcomm CSR8670 
  • Airoha AB1522
  • Airoha AB1531
  • Airoha AB1552
  • Airoha AB1561M
  • Airoha AB1562M
  • Airoha AB1562A
  • Airoha AB1563E
  • Airoha AB1565D
  • Realtek RTL8763B
  • Mediatek MT2811
  • Mediatek MT2822
  • Mediatek MT2833 
  • NXP NXH3670
  • Sony CXD3277
Sony has switched to the YY naming scheme for all of their Bluetooth devices, like headphones, wireless mice, and wireless keyboards. I suspect Sony still uses the HDX-#### scheme internally for development, as seen with the WF-C500 teardown, but this could be specific to certain models made by OEMs (ex Cresyn).

Here is the latest list (September 22 2025). Please keep in the mind that these codes are not just for wireless headphones, but also for wired, and their accessories like cables, and dongles. I have also added links to the the table of the unreleased models.

Code Model Bluetooth SoC
YY3008 new model? ??
YY3007

YY3006 new model? ??
YY3005

YY3004 IER-EX15C not wireless
YY3003

YY3002

YY3001

YY3000

YY2999 New Wireless Headset ??
YY2998 New Wireless Headset ??
YY2997 Mouse Pad not wireless
YY2996

YY2995 USB audio box For inzone E9
YY2994 USB dongle for Mouse NRF52810-QCAA
YY2993 Mouse pad not wireless
YY2992 Inzone keyboard not wireless
YY2991 Gamig Mouse NRF52833-QIAA
YY2990 INZONE headset?
YY2989 Inzone E9 not wireless
YY2988 Inzone H9 II dongle AB1571D
YY2987 Inzone H9 II AB1577/AB1571
YY2986 WF-C710N MT2822M (V1)
YY2985 WF-1000XM6 ??
YY2984 WH-1000XM6 MT2833A (V2)
YY2983 MDR-M1 not wireless
YY2982 WF-C510 AB1563E
YY2981 WH-ULT900N MT2822M (V1)
YY2980 USB Transceiver (YY2977) AB1565D
YY2979 USB Transceiver (YY2976) MT2822M
YY2978 WI-EO600 RTL8763BFS
YY2977 WF-G700 CXD3277
YY2976 WH-G500 MT2822M
YY2975 LinkBuds Fit MT2833 (V2)
YY2974 USB Transceiver (YY2969) ??
YY2973

YY2972 MUC-M12SB2 none
YY2971 MUC-B20SB2 none
YY2970 MDR-MV1 not wireless
YY2969 LinkBuds UC MT2822M
YY2968 WF-C700N AB1562AE
YY2967 MDR-G300 USB Audio box not wireless
YY2966 WH-CH720N MT2822M (V1)
YY2965 USB transciever (H7/H9) NXH3670UK
YY2964 LinkBuds Open MT2833 (V2)
YY2963 WF-1000XM5 MT2833 (V2)
YY2962 WI-EO600 RTL8763B
YY2961 MDR-G300 not wireless
YY2960 WH-G700 MT2811B/NXH3670UK
YY2959 WH-G900N MT2811B/NXH3670UK
YY2958 WH-CH520 AB1561M
HDX-2957 WI-C100 AB1561M
YY2956

YY2955

YY2954 WH-1000XM5 MT2822A (V1)
HDX-2953 WF-L900 (LinkBuds) MT2822M (V1)
HDX-2952 WF-C500 AB1562M
HDX-2951 WH-XB910N MT2822S
YY2950 WF-LS900N (LinkBuds S) MT2822M (V1)
YY2949

YY2948 WF-1000XM4 MT2822S (V1)
HDX-2947 WH-CH710N AB1531
?? WF-SP800N RTL8763B
HDX-2945 WI-SP510 MT2811SP
HDX-2944 WF-XB700 AB1552
HDX-2943 WH-1000XM4 MT2811A
?? WF-H800 MT2811A
HDX-2941 WH-H810 MT2811
HDX-2940 WH-H910N MT2811SP
HDX-2937 WI-XB400 RTL8763B
HDX-2936 WH-CH510 RTL8763B
HDX-2934 WI-C310 RTL8763B
HDX-2933 WI-C200 RTL8763B
HDX-2931 WF-1000XM3 MT2811
HDX-2930 WH-XB700 CSR8675
HDX-2928 WI-1000XM2 MT2811SP
?? WH-XB900N CSR8675
HDX-2918 WH-CH500 AB1522
HDX-2916 WH-1000XM3 CSR8675
?? WI-C600N CSR8675
HDX-2914 WI-C300 AB1522
?? WF-SP900 ??
HDX-2911 WF-SP700N CSR8675
HDX-2910 WH-CH400 AB1522
HDX-2908 WH-CH700N CSR8675
HDX-2893 WH-H900N CSR8675
HDX-2892 WH-1000XM2 CSR8675
HDX-2888 WI-C400 AB1522
HDX-2887 WH-H800 CSR8675
?? WI-H700 ??
HDX-2865 WF-1000X CSR8675
?? WI-SP600N CSR8675
HDX-2854 MDR-XB950N1 CSR8675
HDX-2853 WI-1000X CSR8675
HDX-2852 MDR-ZX220BT CSR8675
HDX-2842 MDR-XB70BT CSR8675
HDX-2840 MDR-XB50BS CSR8675
HDX-2838 MDR-XB80BS CSR8675
HDX-2837 MDR-1000X CSR8675
HDX-2834 MDR-XB650BT CSR8670
HDX-2833 MDR-100ABN CSR8670
HDX-2821 MDR-EX750BT CSR8675
HDX-2819 MDR-1ABT CSR8670
HDX-2795 MDR-ZX330BT CSR8670
HDX-2793 MDR-ZX770BN CSR8670
HDX-2783 MDR-ZX550BN CSR8670
?? MDR-AS800BT ??
HDX-2863 MDR-ZX780DC unknown
HDX-2755 MDR-XB950BT CSR8670
HDX-2734 ?? unknown
HDX-2718 MDR-ZX750BN CSR8670
HDX-2587 MDR-10RBT unknown
HDX-2516 MDR-RF6500 unknown
?? MDR‐AS600BT CSR8670
?? MDR-AS800BT CSR8670
?? MDR-1RBT CSR8670
?? DR-BTN200 CSR8670
?? XBA-BT75 ??
?? MDR-RF4000 ??
?? DR-BT101 CSR57E6
?? DR-BT100CX CSR57E6
HDX-2036 DR-BT160AS CXN1600
HDX-2035 DR-BT140Q CSR57E6
HDX-1974 DR-BT22 CXN1450
HDX-1955 DR-BT50 CXN1450
HDX-1956 DR-BT21G CXN1450
HDX-1927 DR-BT10CX CXN1450
HDX-1925 DR-BT30Q CXN1450

5 comments:

  1. Hi! Great post!
    Is there any chance you know which buttons are used on the HDX-2936 board? I drowned two of them and would like to replace them.

    ReplyDelete
    Replies
    1. Do you mean what kind of buttons? I do not know the model of buttons, but I can post a photo of the board below from a teardown.

      https://imgur.com/TDLDDqJ

      is this what you were looking for?

      Delete
  2. How to disable "Sidetone Function" in Sony's Bluetooth earphones? WH CH-510

    ReplyDelete
  3. I really want to know that too!!!

    ReplyDelete
  4. WH-CH520 HDX-2958 Airoha AB1561M

    ReplyDelete

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