【Comfortable Open-Ear Design】Designed for long-wearing comfort, these earbuds feature an open-ear style that doesn't intrude into the ear canal. 【Dolby Panoramic Sound】Experience immersive audio with Dolby panoramic sound technology for high-quality listening. 【Long-Lasting Battery Life】Enjoy 6-8 hours of playtime on a single charge, with a total of 100 hours standby time. 【Multi-Language Translation Support】Featuring innovative translation capabilities, these earbuds support voice translation between multiple languages. 【Touch Controls】Intuitive touch controls allow for easy operation of various functions. 【Battery Display】Keep track of your power levels with the convenient battery display feature. Specifications: Model: Q39 Bluetooth-compatible Version: 5.4 (AB5656C2 chip) Speaker Size: 16mm Main Material: ABS with Electroplating process Sensitivity: -38dB ±1DB Signal-to-Noise Ratio: ≥90dB Frequency Range: 2.402GHz-2.480GHz Bluetooth-compatible Range: ≤15 meters Earbud Battery Capacity: 40mAh Charging Case Battery Capacity: 300mAh Playtime: 6-8 hours Standby Time: Approximately 100 hours Charging Time: Approximately 1 hour (both earbuds and case) Charging Port: Type-C Charging Cable Length: 30CM Charging Voltage: 5V Voice Prompts: Beep sounds for notifications and low battery