Portable Cans: Audio Technica ATH-WM5.

Self-adjusting lightweight headband for long-wearing listening comfort

Circumaural design ensures superior isolation

"Wind-Up Mechanism" function that allows you to retract the headphone cord.

Rotating earpieces for easy one-ear monitoring

Type	Dynamic
Driver Diameter	Ø30mm
Case	Plastic
Frequency Response	10 ~ 23,000Hz
Maximum Input Power	500 mW
Sensitivity	108 dB/mW
Impedance	20 Ω
Weight	87 g
Connector	Ø3.5mm mini stereo, gold-plated

Reviewing gears:

Source: 4GB MP3/4 Player; 8GB 2.8"LCD TOUCH SCREEN MP3/4 VIDEO PLAYER; EPC-303 MP5 8GB 3.0 Inch TFT LCD Screen Player - Red / Black; Oregon Scientific Music Orbit & Station; Denon CDR-W1500 HDCD Recorder/Player.

Head Amps. & DAC: Little Dot MKI Portable Headphone Amp Amplifier; Cmoy headphone amplifier with Bass Boost Setting in a custom made exotic padauk and zebra wood case (opa2227 opamp); Xiang Sheng 708B Tube Headphone Pre Amplifier; Go Vibe mini USB Audio DAC (Burr-Brown PCM2702).

Reviewing CD and Tracks: Custom made by ripping songs to FLAC than normalized/burnt via Nero9.

CD Tracks: Esteban - Norwegian Wood; Everything But The Girl - I didn't know I was looking for love; The Corrs - Runaway; Acoustic Alchemy - Mr. Chow; The Verve - Bittersweet Symphony; Willie & Lobo - Amsterdam; Tim Weisberg - Party of One; Sleep Station - There She goes; Seattle Symphony Orchestra - Beethoven's Symphony No. 9 (Scherzo); Sim Riney - What was I to you; Rebecca Pidgeon - Spanish Harlem; Pink Floyd - Dark Side Of The Moon; Mike Oldfield - Tubular Bells.

Rating: From one star (★, lowest rating) to five stars (★★★★★, highest rating), including half a star (☆). Criteria include [Packaging / Build Quality / Accessories / Isolation / Microphonics / Comfort / Soundstage / Sound Quality / Value]

★★★★★-The best
★★★★---Really good
★★★-----Average
★★-------Just OK
★---------Not worth it

Earphones: Audio Technica ATH-WM5. Closed back design
Transducer: 30mm neodymium magnets.
Spec: 20 Ω | 20Hz~ 20kHz | 108 dB/mW Cord Style: 0~1.0m, adjustable length, Ø3.5mm mini stereo, gold-plated - retractable cord.
Mini Jack Style: Gold plated, med. build.
Case: Plastic
Packaging: ★★★★
Build Quality: ★★★ (delicate build)
Accessories: ★★★
Isolation: ★★★
Microphonics: ★★★
Comfort: ★★★
Soundstage: ★★★ (Average sound stage presentation)
Sound Quality: ★★★ ( musical, mids - treble is good, bass extension is lacking, a bit bright for my tastes)
Value: ★★★ ( average, there are better choices around)
Remarks: The sound quality of the portable cans are a bit bright and fierce for my tastes.