The earphones are comfortable in the ears, and will not be painful when worn for a long time, and they will not fall off easilyThe wide compatibility allows the headset to be easily matched and connected with the device you are using, simple to use and easy to operateWhether as a gift to a friend or to yourself, this will be a great value choice Item Name: Bluetooth Earphone Material: ABS Trumpet Impedance: 16Ω Trumpet Response Rate: 20Hz - 20KHz Trumpet Rated Power: 3mW Trumpet Sensitivity: 98dB Talk Time (Medium Volume): About 3.2 Hours Music Time (Medium Volume): About 3 Hours Standby Time: About 160 Hours Bluetooth Version: 5.0 Transmission Distance: 7m - 10m Input Power: 93mW Charging Time: About 0.6 Hour Battery: 75mA Lithium Polymer Battery (Included) Battery Voltage: 3.2V - 4.2V Features: Wireless, Bluetooth, Stereo Sound, In-Ear, Portable, Easy to Carry Cable Length: 35cm/13.78" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bluetooth Earphone 1 x Charging Cable