BT version / chip: v5.4 / JL7016G8. Audio decoding protocol: SBC/AAC. Frequency response: 20Hz~20kHz. Transmission distance: ≥10m. Earbuds battery: 45mAh. Headset working time: About 5 hours (50% volume). Charging case battery: 400mAh. Total working time: About 20 hours. Charging time: Earbuds: about 1.5 hours. Charging case: about 2 hours. Charging case input: USB-C, DC5V / 0.4A. Size: 61.6*75*25.6mm. Total weight: About 52g. Waterproof rating: IPX4. Certification: CE, FCC ID, ROHS, EAC, SRRC, UN38.3, MSDS, air and sea freight report. Feature 1: Ear-hook stereo earbuds. Feature 2: The headset can be used for 1 hour of music after charging for 10 minutes. Feature 3: Sound-proof open sound field. Feature 4: Dynamic bass enhancement. Feature 5: Extremely lightweight and ultra-thin charging case. Feature 6: Call noise cancellation. Feature 7: Stable wearing.
