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Newest Bluetooth Handsfree Earphones Wireless Bussiness Headphone Noise Canceling Headset With Mic For Driver With Charging BOX Parameters： Bluetooth version: V5.1+EDR Transmission distance: 10 meters Battery capacity: 60mAh Battery capacity: 500mAh Play/talk time: about 4 hours Charging time: about 1 hour Standby time: 120 hours Functions： 1. Bluetooth 5.1 stereo Bluetooth headset; 2. Ultra-thin business exquisite charging warehouse design; 3. The ear-hanging style is comfortable to wear and does not pick your ears; 4. Ceramic antenna, wide range of anti-interference signal; 5. Magnetic charging, taking out and connecting back; 6. IOS system power display; 7. Intelligent wake-up voice Siri; Tips: There are 2 styles of products,(Single earphone, earphone + charging box), please choose to buy.