Состояние видно на фото.
На момент выхода в продажу официальная цена в Китае была около , у нас, соответственно дороже.

Был заменён аккумулятор (используется аккум с маркировкой NB-7L от какого-то фотоаппарата Canon, но его нужно паять).
Вот копипаста описания устройства:

Frameworks:
Audio coupling: top MUSE KZ series ( two )
Filter: Sanyo solid polymer capacitor
LPF: Panasonic capacitor SMD film ( 5%, not ordinary soldering )
Amp: ad8397ardz rail-to-rail amplifier
Decoding: wm8740 (single )
Lpf: lme49720 THD 0.00003%

Src:ad1896
The local clock: 0.5PPM ( Phase noise-125dBc/1KHz ) tcox temperature compensation crystal 11.2896mhz
Power supply: ultra low ripple ( 1mV ) double inductor topologies of DC power supply
Pcb board: 4 layer 2 times on Cu + electromagnetic shielding cover

Interface:
1.Coaxial RCA coaxial digital output interface ( IEC-60958 )
2. optical fiber Optical output interface ( round )
3. LINE OUT line output (share with fiber export )
4. HEADPHONE 3.5mm headphone output interface (a 6.5mm headphones conversion head, can easily drive 16-300ohm. )
5. 12V power charging interface
6. usb data interface
7. tf card interface ( please use class4 Kingston TF Card )
8. analog potentiometer volume adjustment

Technical Parameters:
Headphone output power: 450mw/16ohm220mw/32ohm50mw/300ohm
Coaxial output impedance: 75Ohm
Coaxial output level: 500mv P-P
Line output reference level: 2V ±1.8dB ( 1KHz )
SNR:? 109 dB ( A weight )
Channel balance:? 1.5dB ( 1KHz )
The degree of channel separation:? 95dB ( 1KHz )
frequency response: 20Hz ~20KHz ( +0/-2.5dB )
Total harmonic distortion plus noise: ( 1KHz? 0.003% )
Life time: wav format for about 12 hours ( display closed) ape format for about 10 hours ( display off) fiber output state is reduced about 5%
Support audio formats: WAVAPE FLACAAC OGG MP3 WMA ( 8-48k )
Storage capacity: built-in 16GB extension 0-32GB
Battery: 1200mAh 7.4v lithium battery
Net volume: 110*70*26mm
Net weight: 301g