Sony YY2998 Certified on the FCC

The mysterious YY2998 has been certified on the FCC. We already knew the headset came with noise cancellation thanks to the Indonesian certification, but the FCC filing finally confirms it is an over-ear model. My best guess is this is the new WH-CH730N, assuming Sony keeps the 700 series naming scheme.

The label diagram is just a general placeholder image for the model, so not much is revealed here. The serial number will be under the earpad according to the filing. The current WH-CH720N has the serial number on the left side support hinge/swivel backside.

 

The antenna is an Inverted-F type, manufactured by Amphenol Airwave Communication Electronics Co., Ltd. Not much else is reveal in the antenna document.

The internal battery is 3.85V, with recharging via USB. The documents do not mention the type, but it will be USB-C. The software for wireless testing is "Headset_BT_Test". The same software Sony used for the WH-1000XM5 and WH-1000XM6 wireless testing. So it would be safe to say we are looking at a Mediatek or Airoha Bluetooth SoC. 

What SoC could Sony use? The current WH-CH720N uses the MT2822, so would Sony move to the same chip as the WH-1000XM6, MT2833? I doubt it. Sony could use an Airoha chip, perhaps the AB1571/77?

The headset has already been certified in Indonesia and China earlier this month. which revealed the noise cancellation detail. See the previous post here. Likewise the import filings also revealed 2 colours, black and silver.

 Chinese certification.

 

The short term confidentiality date is June 22 2026. This could mean we could be looking at an April/May 2026 announcement. The WH-CH720N was announced in February 2023, so about a 3 year life cycle. This is much longer than what the mid-range usually had in the past, about 2 years.

So what could Sony improve? Well first and foremost the hinge, so it does not break. Second the noise cancellation could definitely be improved, alongside the sound quality. And finally, adding LE Audio. Apart from that, anything additional is a bonus. Hopefully Sony does not add the Auto NC Optimizer.  

If you wish to support my work, please can do it through Buymeacoffee.