The pictures only show the volume controls clearly. Where are the stop, start and skip controls?

Stop/Start: Press Middle Button Skip: Long press volume up Previous track: Long press volume down

Is there a regular audio lead that can be used when the batteries are dead?

No sadly. But you'll likely not need it there's a 12 HOUR BATTERY.

Do they still have a lifetime warranty like the other portapros?

You will NEVER see a quality device with a rechargeable battery that has a lifetime warranty. Unfortunately, battery technology is lagging way behind the advancements in most other areas of our lives. So, right now, rechargeable batteries don't last more than 18 months (giving you the same amount of charge as the first week of use) if the device is charged once a day, every single day.

Control Method	Touch
Controller Type	In-Line
Control Type	Volume Control
Unit Count	1 Count
Item Weight	50 Grams
Wireless Technology	Bluetooth
Connectivity Technology	Bluetooth
Frequency Range	15-25,000 Hz
Noise Control	None
Headphone Folding Features	On Ear
Headphones Ear Placement	On Ear
Style Name	Classic
Color	Black
Battery Average Life	12 Hours
Is Electric	Yes
Antenna Location	Calling, Travel
Compatible Devices	Bluetooth-enabled devices
Cable Features	Wireless Bluetooth On-Ear Headphones Bluetooth 4.1 with aptX™ 12+ Hour Battery Life (recharageable) In-Line Controls (Play/Pause, Start/Stop, Volume, Answer/End, etc.) Integrated Microphone Comfort Zone setting on temporal pad Collapsible design for compact storage Porta Pro® Hard Case included
Additional Features	Carying case included, Microphone, Adjustable headband, Lightweight, volume-control, wireless
Enclosure Material	Copper
Specific Uses For Product	Calling

Koss Porta Pro Wireless

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