Sennheiser electronic is an international organization that manufactures headphones, microphones, telephony accessories, aviation and audiology products. If you’re in need for the latest product in wireless headphones for your enjoyment and private listening, whether to establish audio connection to TV, stereo, home entertainment such as theater, then its wise to go for Sennheiser set 900 wireless system. In this Sennheiser Set 900, the transmitter is connected to the audio source so that the signal is transmitted using infrared technology. This transmitter is provided with integrated charger and the microphone is attached to the TV loudspeaker using self-adhesive Velco tape.  Moreover, the users can take control over the volume at the receiver end to suit their individual taste. This cordless system also allows microphone amplification to be switched on or off. In addition, a switching compression function parallels out the often unpleasant differences in volume between unobtrusive and loud sounds. If the ear bows are opened slightly to place the receiver on, the sound is excited automatically and if the receiver is removed, it switches off after 30 seconds. This amplifier system is finished in a modern black-metallic design weighing only 68 grams, thereby ensuring a right lightweight, and its flexible ear phones are covered with cushions that ensure it to remain  comfortable even when worn for a long time. This Sennheiser Set 900 pack comes with a Swivel joint for earpad that seems to be accessory for this cordless amplifier system. This system will have Lithium-polymer rechargeable battery that offers nearly 12 hours of continuous use.

The PreSonus HP4 at Front End Audio. For more info visit http://www.frontendaudio.com/PreSonus_HP4_4_Channel_Headphone_Distribution_Ampl_p/2571.htm
The new HP4 from PreSonus answers the need for a headphone distribution amplifier with professional specifications in a small package at an affordable price. The HP4 features four discrete headphone outputs on the front panel each with its own volume potentiometer and 150mW of amplification per channel. The HP4 also features adjustment over control room monitors with a separate volume control, monitor mute switch and mono switch giving you an extremely powerful monitoring solution at an amazingly low price.

Duration : 0:2:4

Read the full tale

My Mini3 ZOMBiE CyGiG Edition with a Ultra Rainbow LED. The LED does not sync with the music, it’s just for aesthetic purpose.

Duration : 0:1:3

Read the full tale

A Future Kit stereo headphone amplifier built into an ordinary deodorant stick bottle. I was worried to turn it up all the way as it could break my headphones; although you couldn’t tell in the video, it really does get THAT loud!
-9V battery
-on/off switch
-stereo input/output
-Volume Control (I used the dial that would normally be turned to push out the deodorant)

This project was done for IEEE in Stony Brook University.

Duration : 0:1:26

Read the full tale

ST3 was developed from audio-gd by Mr.Ho the single-end schematic with DC servo also is a flat amplifier sound is really impressive

Duration : 0:5:22

Read the full tale