This Bluetooth headset， compatible devices with Bluetooth， such as mobile phone. Bluetooth V4.0 version， can be simple pairing safely and connect to 2 phones simultaneously. <br><br><strong>Features:</strong> <br>Bluetooth headset， compatible devices with Bluetooth， such as mobile phone. <br>Connect to 2 phones simultaneously. <br>Built-in microphone， allows you to have wireless telephone conversations. <br>The product will tell your number then coming a call and give you a reminder. <br>Power display only for iPhone/Xiaomi. <br>With CSR chip and blutooth 4.0， support HD call and long time standby， can be simple pairing safely. <br>The HBS-800 is a perfect headset to help you keep your hands free whether you are working in the office or driving in your car. <br>In-ear design， lightweight and portable. <br><br><strong>Note: </strong> <br>The best distance of product working is less than 10m. <br><br><strong>Specifications:</strong> <br>Model: HBS-800 <br>Material： ABS <br>Color: Black， Red (Optional） <br>Working current: 10-20mA <br>Bluetooth: v4.0 <br>Bluetooth Working range: ≤ 10M <br>Output power: 2 * 18mW <br>Frequency range: 2.401-2.480GHz <br>Distortion factor: ≤1% <br>Frequency response: 20Hz-20KHz <br>Working Time: Music state 6h / Talkingstate 8h <br>Charging Time: 2h <br>Speaker: 16Ω20mW x 2 <br>Battery: 3.7V/125hAm (Polymer rechargeable battery) <br>Standby time ≥150H <br>Working environment -10～50℃ <br>Product weight: Approx. 13g / 0.45oz <br>Package size: Approx. 19 * 15 * 2.5cm / 7.5 * 5.9 * 0.98in <br>Package weight: Approx. 104g / 3.66oz <br><br><strong>Package List:</strong> <br>1 * Bluetooth Headset <br>2 * Big Earbud <br>2 * Small Earbud <br>1 * USB Charge Cable <br>1 * User Manual（English）