KHDBT2 Support
Wireless ANC Over-Ear Headphones
Everything you need to get going - manual, tips, specs, and F.A.Q.
Quick start
- Power on
- Hold the power button until it says "power on". If it has nothing to connect to, it follows with "pairing" and starts looking.
- Pair with your phone
- With the headphones in pairing mode, open your phone's wireless device settings and pick Keyscaper S31 ANC. On Android that is Settings, then Connected devices, then Pair new device.
- Two devices at once
- Pair the second device the same way and leave both connected. Music plays from one; a call on the other interrupts it and hands back when you hang up. You do not have to tell it which is which.
- Noise cancelling
- The ANC switch works on its own. It does not need a phone, a connection, or the music side switched on at all, because it is a separate circuit. Green light means it is running.
- Wired
- The 3.5 mm cable is fully passive. It works with the headphones switched off and with the battery flat. Note that plugging the cable in powers the unit down, so there is no noise cancelling while you are wired.
- Game mode
- Hold play/pause for three seconds to switch between Music mode and Game mode. It starts in Music mode.
- Charging
- USB-C. About 35 hours of playback per charge with noise cancelling on, at full volume, which is how we measured it.
Table of Truth
a.k.a. Real Talk. What these do well, what they will put up with, and what they were never built for.
* Nothing electronic is gonna make THAT go away.
The numbers
Measured by us, on the bench, not copied off a spec sheet.
| Weight | 226 g |
|---|---|
| Playback per charge | About 35 hours Noise cancelling on, at full volume. Quieter listening goes further. |
| Drivers | 40 mm |
| Frequency response | 20 Hz - 20 kHz |
| Audio formats | SBC, AAC |
| Wired | 3.5 mm, fully passive Works with the unit off and the battery flat. Plugging in powers the unit down, so no ANC while wired. |
| Two devices at once | Yes, with automatic handover |
| Charging | USB-C |
| Folding | Yes, flat, with a case |
| Battery | Lithium-ion, 500 mAh |
Questions
How do I connect the Wireless ANC Over-Ear Headphones to my phone?
Directly and wirelessly -- no dongle or receiver. Hold the play button for three seconds and they announce themselves and start looking; pick "Keyscaper S31 ANC" on your phone, tablet, laptop or handheld. There is nothing to install.
How long does a charge last on the Wireless ANC Over-Ear Headphones?
About 35 hours with noise cancelling on -- and that is measured at full volume, not resting. Most headphones quote their number with cancelling off; this is the one you will actually get. A full charge takes about two hours.
What are the dimensions of the Wireless ANC Over-Ear Headphones, and is it easy to travel with?
Genuinely easy. 226 grams, which is light for over-ear noise cancelling, and the cups fold flat into the included case with a carabiner to clip it to a bag. With 35 hours on a charge you can fly a long-haul route and a layover without hunting for an outlet.
How do I recharge the Wireless ANC Over-Ear Headphones?
USB-C, about two hours from flat. A 20-inch cable is in the box. Any standard USB charger works -- a computer port, a phone charger, or a fast charger. They all supply 5 V unless a device asks for more, and these never do.
Is there a warranty on the Wireless ANC Over-Ear Headphones?
Yes -- it's backed by a one-year Keyscaper warranty against manufacturing defects in materials and workmanship under normal use. For warranty claims or product questions, email support@keyscaper.com or use the contact form at keyscaper.com, both reach the same place.
Compliance
FCC ID 2AOQZ-S16. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Questions, or something not right? support@keyscaper.com. A real person reads it.
Keyscaper KHDBT2