• 【Open-Ear Design】The YJ33 features an open-ear design for a comfortable and awareness-enhancing listening experience. • 【Long Battery Life】Enjoy extended use with a mature standby time of up to 180 days, perfect for infrequent users. • 【Bluetooth-compatible 5.4 Connectivity】Equipped with the latest Bluetooth-compatible 5.4 technology for stable and efficient wireless connection. • 【High-resolution Driver Unit】HiFi Sound &Three Frequency Balance, large-sized driver,vast sound field, metal plating diaphragm, expressive high analysis, bringing a high frequency of agile and pleasant ears •【Full Color Smart Screen, Rich Function to Control】Full color touch screen, call to answer, music playback, and the functions such as EQ settings are in control Specifications: •Model: YJ33 •Bluetooth-compatible Version: 5.4 •Transmission Range: 10-15 meters •Charging Time: Approximately 2 hours •Charging Case Capacity: 600mAh •Earbuds Battery Capacity: 80mAh •Standby Time: 180 days •Charging Port: Type-C •Frequency Response: 20Hz-20KHz Package included: •1 x Charging Case •2 x Earphones •1 x Charging Cable •1 x Chinese and English Manual