B7 Bluetooth Earphone Smart Bracelet, Support Sleep Monitoring / Blood Oxygen Monitoring / Heart Rate Monitoring(Gold + Brown Leather Belt)1. Bluetooth version: 5. 0 2. Talk time: about 6 8 hours 3. Standby time: about 3 4 days 4. Battery capacity: Built in 90mAh 5. Charging method: Type C input 6. Charging time: about 1 2 hours 7. Waterproof level: life waterproof 8. Hidden earphone design, pick up to answer and put in to hang up 9. Blood pressure and oxygen monitoring anytime, anywhere, to accurately grasp your health status 10. The caller's name and number are clear at a glance, so

Carton Size 61cm * 42cm * 42cm / 24

Low-noise operation

400ml squeezing sauce bottle x 2

91inch * 7

no external power supply (USB bus 500 mAh)

One Package Size 46cm * 14

Installation type: wall-mounted

a USB flash drive

Weight: about 220g

meet the needs of various shooting angles

while fully extended

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