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 Bluetooth: V5.0 Wireless Distance: 10m Protocols: SBC/AAC/mSBC Microphone Sensitivity: -40dB +/- 2dB Waterproof: IPX4 Frequency: 20Hz - 20KHz Sensitivity: 108dB Speaker: 6mm Talk Time: about 20 Hours Music Time: about 19 Hours Charging Interface: Micro USB Input: DC 5V/1A Charging Time: 0.5 Hours Battery Capacity: 160mAh (Included) Prompt Sound Language: Chinese Features: Wireless, Ear Hook, Bluetooth Connection, Ergonomic Size: 8.9cm x 7.2cm x 2.8cm/3.50" x 2.83" x 1.10" (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 Box 2 x Eartips 1 x User Manual