With binaural call, you can experience 3D stereo 360 degree surround sound.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: Wireless Earphones Material: Plastic Bluetooth Version: Bluetooth 5.0 + EDR Transmission Distance: 15 M Using Time: 2.5 H Standby Time: 60 H Earphone Battery Capacity: Built-in 50mAh (Included) Charging Box Battery: Built-in 380mAh (Included) Charging Time: 2 H Frequency Respond: 20Hz-20KHz Features: Cute Appearance, Stereo, Long Transmission Distance Loudspeaker Diameter: 8mm/0.31" (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: 2 x Earphones 1 x Charging Box 1 x USB Cable