i7 mini TWS Earbuds i7s Upgrade True Wireless Bluetooth Sports Earphones Invisible Headphones In-ear Music Sweat-proof Headsets Hands-free w/Mic for Smartphones Running

i7 mini TWS Earbuds i7s Upgrade True Wireless Bluetooth Sports Earphones Invisible Headphones In-ear Music Sweat-proof Headsets Hands-free w/Mic for Smartphones Running

Overview:
i7 mini is a pair of portable TWS wireless BT earphone. True wireless (TWS) BT technology ensures strong signal transmission in high quality & high speed, offering high-fidelity stereo music. Sweat-proof makes it more versatile. Wireless dual ear stereo design, left and right ear channel separation. You can use the left or right ear earphone solely (monaural mode), or use them in pairs (binaural mode). High-sensitivity microphone reduces ambient noises and grasps the detail of voice, ideal for in-car calling or working use. It can simultaneously connect two smartphones, so you can seamlessly switch between your business and personal phones. With a multifunctional button, easy to power on/off, play/pause music, receive/hang up incoming calls.

Features:
Advanced BT Technology:

True wireless (TWS) BT technology ensures strong signal transmission in high quality & high speed, offering high-fidelity stereo music. Sweat-proof makes it more versatile.
TWS BT Design:
Wireless dual ear stereo design, left and right ear channel separation. You can use the left or right ear earphone solely (monaural mode), or use them in pairs (binaural mode).
HD Microphone:
High-sensitivity microphone reduces ambient noises and grasps the detail of voice, ideal for in-car calling or working use.  
Multi-point Connection:
It can simultaneously connect two smartphones, so you can seamlessly switch between your business and personal phones.
Simple Operation:
With a multifunctional button, easy to power on/off, play/pause music, receive/hang up incoming calls.

Specifications:
Model Number: i7 mini
BT Version: 4.2+EDR
Transmission Distance: 12m (no obstacle)
Frequency Response Range: 20Hz-20KHz
Mic Sensitivity: -42dB
Impedance: 32Ω
Battery: Earphone: 2 * 3.7V 55mAh (401020); Charging Box: 3.7V 450mAh (502030)
Charging Time: about 1-2 hours
Music Play Time: about 3-4 hours (single earphone), 2-3 hours (double earphones)
Standby Time: about 100 hours (single earphone), 60 hours (double earphones)
Charging Port: Micro USB
Color: White, Black (Optional)
Earphone Size: Approx. 4.6 * 1.7 * 1.7cm / 1.81 * 0.66 * 0.66in
Charging Box Size: Approx. 6.1 * 4.6 * 2.4cm / 2.40 * 1.81 * 0.94in
Earphone Weight: Approx. 31g (3.5g of each earphone, 24g of charging box)
Package Size: approx. 10 * 10 * 3.4cm / 3.9 * 3.9 * 1.33in
Package Weight: approx. 81g / 2.85oz

Package List:
1 * Pair of Earphone with Charging Box
1 * Micro USB Charging Cable
1 * User Manual (Chinese & English)