• 【Comfortable Wearing Experience】Lapel clip design provides comfortable long-term wearing, perfect for riders, drivers, and business professionals during extended use.
• 【Intelligent Noise Reduction Technology】Dual microphone ENC active noise reduction effectively reduces traffic noise, social noise, construction noise, and industrial noise for clearer calls and music experience.
• 【Extended Battery Life】Single charge provides up to 90 hours of playback time with 400mAh large capacity battery, ensuring all-day usage without frequent charging.
• 【Fast Charging】30-minute fast charging reaches 90% battery level, reducing waiting time with CCC safety certified fast-charging technology.
• 【Smart Connection & Multi-Device Support】Supports Bluetooth-compatible 6.0 for stable connection and smart one-to-two connectivity, allowing simultaneous connection to two devices for seamless switching.
• 【Intelligent Operation】One-touch retractable cord design with LED battery level display, call vibration alert, and voice number announcement for convenient and intuitive operation.

Specifications:

• Model: K91
• Chip: JL BT8932H
• Bluetooth-compatible Version: Bluetooth-compatible V6.0
• Transmission Distance: 10m
• Battery Capacity: 400mAh
• Charging Time: About 20 minutes
• Music Time: About 90 hours
• Talk Time: About 90 hours
• Standby Time: About 600 hours (connected state)
• Charging Interface: TYPE-C
• Input Voltage: DC 5V
• Working Voltage: 3.7V (3.3-4.2V)
• Product Weight: 112g
• Waterproof Level: IPX5