Product Review

The Collection Series headphone is the first step for the many conventional headphone users. Equipped with powerful 9MM Drivers encased in Lustrous Metal shells, deliver a wide frequency range up to 24kHz. Strong-Deep Bass, Silky Mid-Range, with Crisp Highs combine together for a Unique Acoustic Experience. The U1 is made for your iPhone and other iOS devices, simply connect using the Lightning Connector and power up the integrated DAC/AMP and DSP. SPECIFICATIONS Speaker: 9mm Rare Metals Coil Dynamic Speaker Frequency response: 20~24kHz Impedance: 32ohms Sensitivity: 106dB (+/-3dB), Mic -45dB Distortion: < 3%（1 kHz，100dB SPL) Speaker Power: Input power of driver: 2mW, Max input power of driver: 5mW Plug: Licensed Lightning C68E Cable Length: 4ft/1.2M +/-1% Cable Material: TPE FLAT Tangle Resistant Cable cord: 9N OCC round cable Cable Earphone Shell: Sintered Ceramic HOW TO USE Headphone: 1. Select a suitable size eartip to fit inside your ear comfortably. The right fit will act as a earplug. 2.Plug into any Apple Device that is equipped with a Lightning port or Apple and Apple MFI Certified Audio Adapters. 3.Short press the volume “+" or volume “–“ button to listen to music at a comfortable volume. PLEASE NOTE: The U1 Series in-ear headphone can achieve high decibels, which can harm your inner ear and hearing long term. If your ears start to hurt, you are listening at a high volume and would highly recommend you lower the volume and allow your ears to adjust. 4. Multi-Function Button (MFB) Instructions: MUSIC - Press the MFB once to play and pause music. - Press and release MFB twice quickly to skip to NEXT track. - Press and release MFB three times quickly to skip to PREVIOUS track. PHONE - Short press MFB to answer incoming call. - Short press again MFB to end the call. SIRI - Press and hold MFB to activate Apple's Siri.