X16 Stereo Bluetooth Headset uses the Newest &Advanced Bluetooth 4.1 technology, and it supports A2DP, AVRCP and hands-free function which bring you much convenience when you answering incoming call during driving & walking. X16 Bluetooth 4.1 Headset helps you easily realize the two thoughts, controlling your music and calls by the buttons of the headset. X16 Headset use Apt-X technology which can offer you high-quality sound music. Its lightweight and compact portable size is perfectly suitable for jogging, mountain-climbing traveling, hiking, etc. X16 Features: *Advanced Bluetooth Technology: X16 Headset uses renowned Stereo Bluetooth CSR8615 / 4.1 chip to ensure super fast data transmission and stable performance. *Super Sound Quality: X16 Headset uses Apt-X technology, comes with high-performance Speaker, offering you high-quality audio, letting you greatly enjoy CD quality sound music & enhanced BASS effect. *Convenient to controlling your music and calls: X16 Headset is equipped with function buttons (Support Touch button function) which lets you easily controlling your music. It also supports hands-free with high-grade microphone, thoroughly setting free you hands from answering the call during exercise. *Easy to use: X16 Headset supports Voice Prompt, letting you easily to operate the headset. *Integrated Multi-point Technology: X16 Headset Can simultaneously connect two smarts phone. So you can seamlessly switch between your business and personal phones. *Perfectly Compatibility: Compatible with almost all Bluetooth-enabled mobile devices such as, for iPhone iPad iPod, for Smartphones other Android / iOS Smart Phones, Tablet PC, Laptop, etc. Also supports auto-reconnect. *Ultra-low Power Consumption: Up to 4.5 hours of continuous Music and 4.5hours of Talk Time, 120 hours of Standby Time per charge cycle. X16 Specifications: Model Number: X16 Bluetooth Version: Bluetooth 4.1 (Bluetooth Chip: CRS8615); Class 2. Supports HSP, HFP, A2DP, AVRCP, Apt-X protocol. Operation range: Up to 10 meters Frequency Response: 20-2000kHZ Impedance: 32 Sensitivity: 101.5db± 3db High-quality 3.7V / 55mAh Rechargeable battery Music Playing Time: About 5 hours (The Music Volume will affect the time) Talk Time: About 4.5 hours Standby Time: 120 hours Charge Time: 1.5hours Charge Port: Micro USB The Cable length: 70cm Color: Black with Red, White with Gold, Black with Blue (Optional) Main Item Weight: 8g / 0.28oz Main Item Size: 5.0 * 4.0 * 3.0cm / 1.96 * 1.57 * 1.18in Package size: 9.5 * 9.05* 3.2cm / 3.74 * 3.74 * 1.25 in Package weight: 52g / 1.83oz Package List: 1 * X16 Bluetooth Headset 1 * USB Cable 1 * Pair of Earbud 1 * English / Chinese User Manual