Feature:1. 3.5mm AUX and Type C: 3.5mm AUX and USB Type C ensure a more reliable and stable connection. SNRandgt 120dB and THDandN 0.0003 percent can output clearer and more vivid stereo without distortion.2. Widely Compatible: Compatible with 3.5mm AUX output digital devices such as MP3, MP4, mobile phones, game consoles, etc. Type C input is compatible with mobile phones, computers, laptops, etc.3. 16600 HiFi Headphone Amplifier: Supports 16600 impedance headphones, helping high impedance or low sensitivity headphones to be better driven, exquisite, compact, light and portable.4. Aluminum Alloy Shell: Sturdy and durable, overall shielding, reducing signal interference, and enhancing heat resistance. The volume control knob is also a switch, you can adjust the volume and switch operation.5. Two Stage Gain Switch and Bass Enhancement: It enhances the signal input to the headphone amplifier circuit to obtain the best headphone performance. With bass switch, provide a more delicate and round bass performance.6. Rechargeable Lithium Battery: It adopts a 3000mAh rechargeable lithium battery, which can make the headphone amplifier work for 1015 hours. Comes with Type C cable and audio cable, plug and play.Specification:Item Type: Headphone AmplifierSize: 9.8 x 6 x 1.3cm or 3.8 x 2.4 x 0.5inMaterial: Aluminum AlloyColour: BlackBattery Model: Lithium Battery (Built In) Capacity: 3000mAhContinuous Use Time: 10-15 HoursStandby Time: 120000 HoursCharging Time: 3 HoursCharging Voltage: 5V or 1AMaximum Output Power: 100mW 32 or 60mW 600 (load)Load Resistance: 16-600 (Can Push the Resistance Range of Earphones)Distortion: 0.003 percent Signal to Noise Ratio: 120dBResponse Frequency: 20Hz-20kHz (3dB)The Highest USB Playback Quality: 24-bit or 192KHzParameters: Compatible with a variety of digital devices with 3.5mm AUX output such as MP3, MP4, mobile phones, etc. Type C input is compatible with mobile phones, computers, and laptops.Enhance the signal input into the headphone amplifier circuit to make the headphones play the best performance. With bass switch, provide a more delicate and round bass performance, giving you a more shocking music experience.Package List:1 x Amplifier1 x Vocal Cable1 x USB Power Supply Line1 x Type C Data Cable1 x Manual