The first version

Haptu Amp x1($50)

Haptuator Redesign x1 ($120)

3.5mm Female to 2.5mm Male Headphone Adapter x1 ($2)

(similar product should work)

3.5MM Male To Male Stereo Audio Jack Cable x1 ($2)

(any 3.5mm audio cable is fine)

Optional:

12V Dc Power Adapter x 1

(need to figure out how much power is required for stable actuation)

Methods:

1. Connect male headphone adapter with 2.5 mm jack (J1)

2. Connect power cable with power line (J3). I've used stabilized power supply in the lab, but 12V DC power adopter should work. 

3. Connect Haptuator with output line (J4). Soldering is preferable. 

4. Audio cable is connected with PC and male headphone adapter, and playback recorded contents in the following:

Next step:

Connect with microphone and direct playback