The XDuoo XD-05 DAC/Amp is currently fully unlocked at the members-only shopping site Massdrop for $170 plus $8~ flat shipping. The offer is running for the next seven days days (from blog-posting date; not blog-reading date) and it will ship late December 2016. It will ship from Massdrop. There is no mention of warranty duration in the listing, but a warranty card is included.

It is available in two color schemes. This is a portable device (charges via microUSB) and has a variety of inputs and outputs on the back and front of the device, along with Gain (three settings) and Bass (two settings) manual switches on the front of the device.

This is a higher risk purchase because the seller is “Autocare Depot” and it ships directly from them, so if you are a low risk shopper, you may want to skip this.

It is the lightweight closed-back on-ear Philips F1/27 headphones, in new condition, offered for $50 with free shipping by seller “Autocare Depot” through amazon.com. They ship directly from the seller, so they are not eligible for Prime shipping. Amazon’s own price is $99. The headphones themselves average 4.4 out of 5 based on 19 customer reviews.

Two different Hifiman authorized dealers have listings of the Hifiman HE1000 planar magnetics (open over-ear) in “Used – Like New” condition for $2400 through Amazon Warehouse Deals. Neither is Prime eligible. Keep in mind that Hifiman has higher than average reliability issues compared to the competition at similar price ranges, so factor that in when making used Hifiman purchases.

The black with gold trim color-scheme of the closed-back over-ear Munitio (yes, Call of Duty) PRO40 headphones is currently going for $89 with free shipping, in new condition, by two marketplace sellers, with both of their inventory fulfilled by Amazon. They average 4.5 out of 5 based on nearly 50 customer reviews over there.

Amazon is currently offering on sale (not part of their Lightning Deals) the recertified/refurbished Bower & Wilkens P3 On-Ears closed-back headphones for $90 per pair, with free shipping and a 2-year warranty. The refurbishing is “blessed” by B&W. They are available in four different color options. Limit five per color per customer during this sale.

More AT discounts. The ATH-M70X closed-back over-ears are now down to $190 with free shipping at authorized dealer Adorama.com. It will be interesting to see how the introduction of the M70x impacts the legacy of the M50/M50x as these things (such as hype) work in mysterious ways, and sometimes an addition may create a disturbance in the force instead of have a cumulative effect.

This is a security PSA! Stagefright 2.0 can also spread via mp3 and mp4 files downloaded on mobile devices, by taking advantage of Android’s preview feature. More details via Engadget and TechMeme.

This lightning deal ended… Party on X1 fans! They are a PrimeDay lightning deal for $170 at Amazon, with the offer ending by 1:50am ET on Thursday 7/16/15. The X2 went for $230 earlier during PrimeDay Madness.

This 4-hour lightning deal expired… The action continues at Prime Day with the Audio Technica ATH-M40x closed-back over-ears going for $80 with free shipping, in new condition, by Amazon actual. Offer ends by 3:50pm ET or earlier if they run out.