Sony PHA-1A

Features
Enjoy powerful sound on the go in a sleek, pocket-sized amplifier
Compatible with High-Resolution Audio formats (192kHz/24bit)
Digital connection for Walkman®, Xperia®, iPhone/iPad/iPod®
Features high quality components for well-balanced, natural sound
Immerse in spacious, three-dimensional soundstage
Engineered for the best listening experience with MDR-1A & Walkman® A10

Sampling Frequency/Bit PCM: Max. 192kHz/24bit
Impedance 8Ω-600Ω
Frequency Response 10-100kHz
Maximum Output Approx. 148mW + 148mW (8Ω, 10% distortion) Approx. 80mW + 80mW (32Ω, 1% distortion) Approx. 16.4mW + 16.4mW (300Ω, 10% distortion)
Output(s) Stereo mini jack (Only a 3-pole stereo mini plug is supported)
Input(s) Computer/WALKMAN®/Xperia connecting port, iPhone/iPad/iPod® connecting port
Power Source / Battery Type Built-in lithium-ion rechargeable battery
Battery Life Approx. 6h
Battery Charging Time Approx. 2h
Dimensions (W x H x D) Approx. 62 x 18.5 x 109 mm
Weight (Without Cord) Approx. 145g
Supplied Accessories Digital cable for WALKMAN®, Digital cable for Xperia®, Micro-USB cable, Silicone belts and Protection sheet