Aegis took on more of “Alien” lines and there is no more clip on the back. The only available ports are micro-usb for digital data input and 3.5mm for analog output where you plug in your headphones. There is also a small led pinhole to indicate the power. The build is solid, bulletproof, lightweight, high-end scratch proof CNC milled aluminum. It really felt great in your hand, but I do miss the clip from Astrapi. The clip allowed different mounting options for this tiny device, like for example clipping it inside of your jeans pocket with 3.5mm jack sticking out for easy headphone access while a smartphone is somewhere in your pocket connected with usb-otg umbilical cord. Another advantage of Astrapi was clipping it to the attached rubber band without rubber band going over the top of the DAC/amp, exposing bigger heat dissipation area. At the same time, Aegis is small enough to leave in-line with your headphones cable, though micro-usb smartphone port gets loose after awhile and it will be easy to pull otg cable or accidentally disconnect it.
The Astrapi is powered by your iphone and android phone, sufficient current is drawn to make the sound full and dynamic. Hook up the Astrapi unit, wait for a few seconds and you are ready to enjoy better music quality on the go.Works with IOS perfectly*, Android (OTG Vol. adjustment support required)**, PC/Mac with usb2.0 port. All 3 cables are coming in one package. Built in Digital Sound Processing filter at 16/44.1 for enhanced sonic quality, advanced filtering system keep audible distortion to a minimum level. Aside from portable use Astrapi doubles as a line-out adaptor. Simply max out the volume bar and you will get a clean and full sounding line-out output, which you can connect to your hifi system or portable amplifier. Featuring an ultra low profile and durable metal design using extensive metal molding and CNC processings, plus a sturdy clip at the back. Simply clip on the edge of your pocket or your belt and enjoy music on the go.
Specification:Powered by Apply deviceInput: Lightning connectorOutput: 3.5mm Stereo headphone output jack (to connect to headset)Buttons: Play/Pause, Volume Up, down, pervious, next songs, pick up/end call, calling SiriLightning cable length: 10cmReceive lossless stereo 48KHz digital audio output from Apple deviceBuilt-in high quality mem-microphoneSupports full functions of all buttons of Apple EarpodsCodec:Cirrus Logic (SNR-112dB)Headphone power output: around [email protected] per channelMetal housing and compact in sizeIOS App ready for future firmware update