Ultra Smallest Invisible Wireless Bluetooth Mini Earphone Earbud Headset Headphone Support Hands-free Calling for Smartphone<br/>Features:<br />High Quality 4.0 Smart Chip, efficient transmison speed.<br />Mini size/Ultra Light Design, portable and easy for carrying.<br />Voice Prompt, excellent experience.<br />Report numbers for incoming calls.<br />Remind for battery capacity.<br />Connect/disconnect prompt.<br />On/off prompt.<br />Updated battery for long use.<br />Fast charging.<br />Super Compatibility.<br/>Specifications:<br />Type: Mini Bluetooth Headset<br />Color: White, Pink, Blue, Black (Optional)<br />Material: Plastic<br />Independence: 32 OHM<br />Bluetooth Version: V4.0&#43;EDR<br />Power level: Class 2<br />Output power: 30 mw<br />Bluetooth distance: Up to 10 meters<br />Frequence response: 20-20000HZ<br />Operationg voltage range: 3.0-4.2V<br />Microphone sensitivity: -42DB<br />Time for talking: 4hours<br />Time for music playing: 3hours<br />Standby time: about 96 hours<br />Charging time: About 1.5 hours<br />Product size: Approx.3 * 1.7 * 1.5cm / 1.2 * 0.7 * 0.6in<br />Product weight: Approx.5g / 0.18oz<br />Package size: Approx.6.2 * 6.2 * 2cm / 2.4 * 2.4 * 0.8in<br />Total weight: Approx.31g / 1.1oz<br/>Package including: <br />1* Mini Bluetooth Headset<br />1* USB Cable<br />1* User Manual