I7s Tws Earphone Tws Wireless Earbuds Mini Wireless Headset

i7s TWS Mini Wireless Earphone In-Ear Stereo Earbuds Headset with Charging Box Mic For All Smart PhonesSupport all smart phones, For example: for iPhone, Xiaomi, Huawei, LG, Samsung, Sony etc.HOW TO USE:1> Please check if the headset has entered pairing mode.2> The name of this earphone would be i7s-tws.3> Consider it's so small size, you need to adjust the volume on your smart phone, there is only one key button on the earphone, for power on/off/answer or reject phone calls.IF NOT CONNECT:Please do as this step to reset the connect:1>Please make sure you has deleted all 'tws-i7' in your phone's bluetooth list, then Long press the multifunction button of two earbuds at the same time until the led flash in blue and red alternately, you will hear a voice says 'Power on'2>automatic pairing3>Turn on the phone Bluetooth and search 'tws-i7' to connect. When the led flash slowly in blue, they paired successfully.Specification:1. Driver: 15mm2. Impedance: 32 OHM3. Bluetooth version: Bluetooth v5.04. Bluetooth use band: 2.4GHz5. Power level: CLASS II6. Output power: 30mW7. Bluetooth distance: 10 meters barrier8. Frequency response: 20-20000Hz9. Operating voltage range: 3.0V-4.2V10. Mic sensitivity: -42dB11. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol12. Powerful noise de-noising circuit (active noise reduction)13. switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully)13. Talk time is about 2 hours14. music time about 2hoursPackage Includes:2 x i7sEarphones(left and right earphones)1 x Charging box1 x USB Charging Cable1 x User Manual