ITEM NAME:A6S TWS Wireless Bluetooth Earphones Stereo Handsfree Microphone In-Ear Earbuds Product Description Description: A6S TWS Wireless Bluetooth Earphones Stereo Handsfree Calling Music In-Ear Earbuds Headset with Microphone Feature: Pleasant sound clear call. Titanium membrane moving coil drive unit, call intelligent filter noise. Large power, 12 hours long battery life. 45mAh headset, 350mAh charging bin, it provides three charging for earphones. It is slanted into the contour of the ear, ergonomically designed, comfortable to wear and stable. Super strong signal, barrier-free distance 25-30m/82.02-98.42ft. Imported ceramic antennas, strong new technology signals, anti-jamming, not delay for listening to songs and calls. Specification: Working Voltage: 3.3V-4.2V Bluetooth Version: V5.0+EDR Battery Capacity: 45mA/350mA Use Time: 3-4 Hours Standby Time: About 60 Hours Speaker Type: Titanium Composite Film Transmission Range: 2.40GHz-2.48GHz Sensitivity: 98Â ±3dB Communication Distance: Effective Distance 15m/49.21ft In-ear mode: Oblique into the ear to fit the ear contour Net Weight: 75g Gross Weight: 86g Product Size: 7.2 X 3.8 X 3cm/2.83 X 1.5 X 1.18" Packing Size: 12 X 9 X 3.5cm/4.72 X 3.54 X 1.38" Color: Black, White, Pink, Green Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 2 X Bluetooth Earphones 1 X Charging Bin 1 X Charging Cable 1 X Manual.45mAh headset, 350mAh charging bin, it provides three charging for earphones. Included: 2 X Bluetooth Earphones. In-ear mode: Oblique into the ear to fit the ear contour. Bluetooth Version: V5.0+EDR.