Neurophone GRShttp://www.flanagan-neurophone.com/Neurophone_GRS/neurophone_grs.html
The Neurophone Neurophone GRS is the latest version. Using the same technology as the Neurophone DSP. However, it is smaller and lighter than the DSP, its sturdy plastic housing is equipped with a belt clip, with the GRS can be attached quickly and easily for mobile use. Please note: The Neurophone GRS is battery powered and has no connection for external audio sources. Therefore, the built-in addition to the pink noise generator can also create a so-called 'Fibonacci sound'. This sound has been compiled by Patrick Flanagan, according to the laws of sacred geometry (the golden section and Fibonacci series). More information can also Flanagan interview Neurophone.
Both of these sounds can be used in another setting as' sleep Entrainment' sequence automatically when the volume / intensity is changed and after a few minutes in this program is the Neurophone GRS off automatically. When Fibonacci Sleep Train Movement such as the Golden noise is pulsed at a frequency and then to beta delta frequency slows down. Patrick Flanagan compares this effect with the 'Russian sleep machine', which he had built with approximately 11 years (see interview).
Also included in the GRS a programmable timer.
The advantages of the Neurophone GRS at a glance:
very small, with 70 grams of weight very easily, especially suitable for mobile use; Case: 10.3 x 5.7 x 1.8 cm (without belt clip)
built-in generator for either pink noise or the sound of Fibonacci
Sleep-entrainment sequences with automatic shutoff
programmable timer
quality stainless steel electrodes
is supplied with two batteries (AAA rechargeable batteries can also be used) and with the elastic headband for easy attachment of electrodes forehead
Please note: The Neurophone GRS has no port for external sound sources and has the battery a much shorter battery life than the Neurophone DSP, but independently of the mains, eg when traveling
Neurophone DSPhttp://www.flanagan-neurophone.com/Neurophone_DSP/neurophone_dsp.html
The Neurophone DSP offers the 'full program': a stable, transportable Neurophone with metal casing on the cutting edge of technology. With a built in rechargeable battery and AC charger, it is also focused on a longer-lasting use. The built-in pink noise generator provides a Neurophone operation without connection to external audio sources. The connection for CD player or similar. gives the user but also the possibility of sound information about their choice Neurophones transmission form directly into the brain.
The advantages of the Neurophone DSP at a glance:
The Neurophone DSP is the first fully digital Neurophone
It has an improved design and a stable laser fabricated metal housing. With a size of 10.5 x 10.5 x 3.2 cm case without push buttons) and a weight of just 400 grams the Neurophone DSP is still a mobile device. Packaged in a standard belt pouch for a portable CD player, the DSP can also be used, for example, while traveling or during lectures.
A microprocessor on the latest technology ensures optimal ultrasound nerve stimulation
the included audio cable allows the DSP (as opposed to Neurophone GRS!) connecting the Neurophone to an external audio source such as a CD or tape player for playing sound recordings, such as language learning programs or meditation CDs
the integrated pink noise generator allows to use the Neurophone without external sound source.
The included 2-way audio adapter connector allows you to use the Neurophone DSP and parallel to a standard pair of headphones to hear sounds from an external sound source. In this way you have the opportunity to use both aural channels: the usual ear canal for the familiar sound and transmission quality and the Neurophones transmission for a more effective transfer of information directly into the brain.
ensure stable electrodes made of stainless steel efficient transmission of ultrasound
the built-in Ni-MH battery pack allows a usage time of up to 25 hours (at low volume set). The supplied AC charger (240 VAC, adapted to European conditions) can charge the battery like a Batterieladegeät, alternatively, the power charger also be used as a power supply for continuous use of the Neurophone DSP.
comes with elastic headband for easy attachment of electrodes in the forehead area
Neurophone Schematicshttp://home.dmv.com/~tbastian/nuro.htmhttp://makeprojects.com/Project/Hear+with+Ultrasound+Using+a+TL494+as+a+Flanagan+Neurophone/2487/1#.UJiIV2dqPWchttp://www.energeticforum.com/personal-development/11959-neurophone.html