<p><br/></p><p><span style="font-size:20px">Specification:</span></p><p><span style="font-size:20px">1. Bluetooth version: v5.0 + EDR</span></p><p><span style="font-size:20px">2. Bluetooth use band: 2.4GHz</span></p><p><span style="font-size:20px">4. Output power: 30mW</span></p><p><span style="font-size:20px">5. Bluetooth distance: 10 meters barrier</span></p><p><span style="font-size:20px">6. Frequency response: 20-20000Hz</span></p><p><span style="font-size:20px">7. Operating voltage range: 3.0V-4.2V</span></p><p><span style="font-size:20px">8. Mic sensitivity: -42dB</span></p><p><span style="font-size:20px">9. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol</span></p><p><span style="font-size:20px">10. Powerful noise de-noising circuit (active noise reduction)</span></p><p><span style="font-size:20px">12. Talk time is about 2-3 hours</span></p><p><span style="font-size:20px">13. music time about 1.5-2 hours</span></p><p><span style="font-size:20px">14. Standby time is about 100 hours</span></p><p><br/></p><p><span style="font-size:20px">Package Includes:</span></p><p><span style="font-size:20px">2 x i7s tws bluetooth earphones (left and right earphones)</span></p><p><span style="font-size:20px">1 x Charging box</span></p><p><span style="font-size:20px">1 x USB Charging Cable</span></p><p><span style="font-size:20px">1 x User Manual</span></p><p><br/></p><p></p>