It is comfortable for you to wear this earphone because it is ergonomic and lightweight. This wireless earphone has long endurance with its large-capacity battery. This earphone features Bluetooth-compatible5.0 chip and intelligent noise reduction, bringing you low-latency and stable transmission as well as HiFi, stereo surround sound effect and mega bass. It is constructed of ABS material. Fetaured with voice assistant, this earphone is easy and convenient to use. The length of this product is 9.2cm, width is 7.4cm and height is 4.4cm. This wireless earphone is suitable for iPhones, for Android phones and other devices with Bluetooth-compatible function. Item Name: Wireless Earphone Material: ABS Model: J92 Bluetooth-compatible Protocol: 5.0 Transmission Distance: 10m Music Time: 4-5H Standby Time: 120H Charging Time: 1-2H Charging Box Battery: 500mAh(Included) Frequency Response Range: 20Hz-20000Hz Channel: Stereo How to Use: Hanging Ear Whether Single or Binaural; Bilateral Stereo Features: Sensitive, Noise Reduction, HiFi Size Details: 9.2cm x 7.4cm x 4.4cm/3.62" x 2.91" x 1.73" (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 Pair of Wireless Earphones 1 x Charging Box 1 x USB Cable 1 x User Manual