This Bluetooth headset￡? compatible devices with Bluetooth￡? such as mobile phone. Bluetooth V4.0 version￡? can be simple pairing safely. <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>Support listening and answering the call￡? true stereo sound. <br>Can be adjusted up and down￡? convenient to use. <br>Support tell number when coming a call and callback the last number. <br>You can change the Chinese and English by holding the two volume keys ("+ "and "-")at the same time. <br>Power display for iPhone/Xiaomi. <br>When you first use￡? you must connect devices woth the buletooth￡? the second time you use and after￡? the devices will connect automatically. <br>DSP noise reduction. <br>Bluetooth V4.0 version￡? can be simple pairing safely. <br>The QY7 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>It is a sports headset. <br><br><strong>Note:?</strong> <br>The best distance of product working is less than 15m. <br><br><strong>Specifications:</strong> <br>Color: Black + Green <br>Bluetooth: V4.1 <br>Material: PC + PE + Silicon <br>Effective range: about 15m / 33ft <br>Standby time: up to 80 hours <br>Talk/music play time: about 4-6 hours <br>Charging time: about 1-2 hours <br>Battery: 85mAh <br>Product weight: Approx. 21g / 0.7oz <br>Package size: Approx. 19.5 * 9.5 * 4.5cm / 7.7 * 3.7 * 1.8in <br>Package weight: Approx. 77g / 2.71oz <br><br><strong>Package List:</strong> <br>1 * Bluetooth Headset <br>2 * Big earbud <br>2 * Small earbud <br>2 * Ear-hook <br>1 * USB Charge Cable <br>1 * User Manual (English)