Long-lasting 2000mAh internal lithium polymer battery lasts more than 8 hours once being fully charged.nAdopts aluminum-shielded case to prevent external interference noise from the audio device, the wireless signals, and other irrelevant noise.nAble to drive various types of earphones. Compatible from 16 ohms (for low-impedance earbuds) to 150 ohms (for professional-quality, high-impedance headphones).nportable Hi-Fi headphone amplifier that features fashionable appearance, big power and high quality voice output. Being able to be connected with PC, mobile phone and other 3.5mm audio devices for improving sound quality.nFashionable mini appearance, it is light, portable and easy to carry anywhere.nSpecification:
Weight: 300g
Dimension: 97*60*15 mm(L*W*H)
Battery: Built-in 2000mAh rechargeable lithium polymer battery.
Suitable OS: Universal
Output Power: 40mW(16Ωload)
Sampling Frequency Supported: USB
Suitable Headphone impedance: 16Ω to 150Ω
Battery Life: 8H (USB IN)
Charging time: 2 hours
Charge Port: Micro USB port
Internal use voltage: minus/ plus 8.3V, 1A
SNR: greater than 1000dB
THD+ N: 0.0003%
Color: Black