How can I make my headphones wireless?

If you have some favourite wired headphones that have been made redundant, since the 3.5mm headphone jack is no longer used for new phones, you are not alone.

Perhaps you invested quite heavily into a pair that you loved and surpassed all your expectations on the sound quality front, just to find you can no longer use them with your latest phone upgrade.

We understand..... And we feel your pain!

But - we have a solution… Why not turn them Bluetooth?

Save your headphones and save yourself the unnecessary expense of having to invest in another set of decent headphones.

You don’t have to compromise on sound quality, or your wallet!

Tired of ripping wires on your headset? Don't like the feel of being "chained" to your computer? Then you came to the right place!

This is a quick DIY project. It can be done in less than 2 hours if you are familiar with the topic, and no more than 1 evening for a complete newbie.

The main objective is to modify your wired headphones into stereo bluetooth headset with the ability to work at least 6 hours on full charge and being able to recharge without any complications.

This frustrating activity (I'll let you know why in a minute) requires minimum tools/materials and at least some experience working with hand tools and soldering iron.

ATTENTION: The new version of wireless headphones is available here

Tools:

• PH0 and PH00 Philips screwdriver
• Rotary tool or small grinder (I am using a $20 grinder bought from China)
• 30-40W soldering iron with small tip
• Wire cutters or some old scissors
• LiIon Charger

Materials:

• Victim headphones with enough space inside to hold the battery
  (mine is an old beat-up Sennheiser hd 201 with 24Ohm speakers)
• 3.7V LiIon battery$3.00 new (I am using really old Nokia BL-5C so it is free)
• 1mm wire (preferrably 4 different colors and at least 1m each) $0.??
• 3.5mm Female Jack connector (mountable, not the ones you solder on PCB$) $0.30
• 3.5mm Male Jack $0.30
• Switch $0.30-$0.50

• BLK-MD-SPK-B Bluetooth module$10.00

Additional materials:

• Solder
• Soldering flux
• Electrical tape
• Hot glue w/ dispensor or just SuperGlue