ASUS ROG Delta II: problems, parts and running costs
Checked: 2026-10-05
Summary
The reported failures are concentrated on the 2.4 GHz mode: owners describe random one- to two-second disconnects and microphone audio that turns robotic until the headset is restarted, plus echo when the same microphone runs through an Xbox controller’s 3.5 mm jack. [4][5] Running costs are near zero because nothing is documented as a consumable beyond eventual ear-cushion wear, and the 1800 mAh pack is charged over USB-C with no subscription. [1] Treat it as a buy for the tri-mode switching and the rated 110-hour 2.4 GHz battery life, not for sound quality: Tom’s Hardware rated the audio good rather than exceptional for a flagship-priced headset, and no non-Amazon store price is documented in the sources reviewed here. [2][3]
Common problems and fixes
- Random 2.4 GHz disconnects of one to two seconds — one 2026 owner reports them appearing without a pattern, with nothing in the reports establishing how often they occur across the owner base. [4] No owner-published fix is documented; the reported workaround is a restart, which also clears the microphone symptom. [4] ASUS warranty terms for this behaviour are not covered by the sources reviewed here. [4]
- Robotic microphone audio over 2.4 GHz — the same owner describes intermittent robotic-sounding microphone audio that clears only after a restart, so the two reports may be one fault rather than two. [4] Restarting is the only documented workaround. [4] No firmware revision is documented as correcting it. [4]
- Microphone echo through the Xbox controller’s 3.5 mm jack — reported by one owner whose wireless use worked normally, so the fault appears tied to the analog path rather than the microphone itself. [5] The documented alternative is to use the headset on 2.4 GHz for voice chat instead of the controller jack. [5]
- No active noise cancellation and no AI microphone noise cancellation — ASUS lists neither in the specification table, so keyboard and fan noise transmit on the boom mic by design rather than through a defect. [1] There is no software fix; the only route is the detachable unidirectional boom mic and general mic placement. [1]
- Xbox is analog only — the 2.4 GHz dongle is not part of the Xbox path, and ASUS supports Xbox through the controller’s 3.5 mm jack. [1] If the dongle is the reason to buy it, it is a PC or PlayStation accessory. [1]
Parts and consumables
- ROG Hybrid ear cushions (part number not published in the sources reviewed here) — no store price is documented in the sources reviewed here; ASUS lists them as removable, and eventual cushion wear is the only upkeep item documented for ordinary use. [1]
- Detachable unidirectional boom microphone (part number not published in the sources reviewed here) — no store price is documented in the sources reviewed here; no owner reports of replacement were found, and the microphone detaches for storage rather than for reported failures. [1][4][5]
- 1800 mAh internal battery — not a consumable: the sources reviewed here do not establish user-replaceable battery availability or a replacement procedure, so plan on replacing the headset rather than the pack if it fails. [1]
- 2.4 GHz USB-C dongle, USB-C-to-USB-A adapter, USB-C charging cable, 3.5 mm cable — all supplied in the box with no documented failure reports; ASUS lists the charging cable at 1.5 m while Tom’s Hardware measured about 1.4 m. [1][3]
Yearly running cost
Not enough data. Nothing in the sources reviewed here is documented as a recurring consumable, so there is no filter, pod or subscription cost to compute. [1] The only running expense is electricity for charging the 1800 mAh pack, and no charge time or wattage is published, so no per-year figure can be derived. [1] The 110-hour rating is a best-case figure with lighting disabled, not a measured runtime, and no owner has published charge frequency or pack degradation data. [2][3]
When it is a good buy
No non-Amazon store price with a month-year is documented in the sources reviewed here, so this page states no threshold. ASUS’s US product page shows a store price below its listed regular price, but retail pricing moves and the figure was not captured with a date. [1][2]
Buy it when one headset has to cover a PC, a PlayStation, a Switch and a phone, because 2.4 GHz, Bluetooth and 3.5 mm are all native to this exact model rather than bought adapters. [1][2] Skip it when sound quality is the priority: Tom’s Hardware found the audio good rather than exceptional for a flagship-priced gaming headset, and was also unimpressed by the frequency-response specification. [3]
Named alternatives are not sourced in the research reviewed here, so none are listed rather than guessed. Compare directly against other premium headsets if the audio rating from Tom’s Hardware is the deciding factor. [3]