Features:● Full metal shell, nice touch feelings and wonderful using experience, cool decoration
● High capacity battery: 150 hours, 5 minutes charging, 10 hours using time
● Portable design, can be put in into pocket
● Beautiful appearance, perfect gift

Specifications:
● Impedance: 16 - 300ohms
● Maximum output power: 100mW
● Frequency response: 20 - 20KHz
● Digital noise floor: Less than 0.01mV
● Signal to noise ratio: 105dB
● Charging time: Less than 3 hours
● Play time: 150 hours
● Gain: 6dB Channels: 2 (2.0)
Model Number: NX1A
Special Feature: Mini,Portable
Usage: Plug and play Package weight: 0.184 kg
Product Size(L x W x H): 9.00 x 6.00 x 1.50 cm / 3.54 x 2.36 x 0.59 inches
Package Size(L x W x H): 17.50 x 11.00 x 3.00 cm / 6.89 x 4.33 x 1.18 inches Package Contents: 1 x Headphone Amplifier, 2 x Silicone Band, 1 x Audio Cable, 1 x USB Charging Cable, 1 x Multilingual User Manual