Product selling points: metal craft, two-color strap and metal strap are optional. The smart bracelet has 24-hour accurate heart rate detection, blood pressure monitoring, monitoringblood oxygen, exercise monitoring, mileage, calorie consumption, message reminder, sleep record, message reminder, and remote control camera.Setting:* Product form: wireless earphone + smart bracelet* Screen size: 1.4 inch IPS* Screen resolution: 240*240* Touch module: full touch screen* Battery type: Lithium-ion polymer battery* Bracelet battery capacity: 3.7V/210mAh* Earphone battery capacity: 3.7V/35mAhHeart rate and blood pressure chipset: HRS3300*Headset CPU: 5376A BRC* RAM: 512KB + 16KB* Built-in speaker: 10mm 8/0.7W speaker x 1* Built-in microphone: yes* Built-in G-sensor: Yes* Bluetooth: (built-in)-BT 5.0* USB interface: support data transfer: via app* DC connector: Micro USB* Charging method: Micro USB tower magnetic suction charging* Charging time: about 1.5h* Duration: Talk time for 3 hours/Normal use for 7 days/Standby time for 15 days* Waterproof: IP 67Software requirements:* Calories: Support* Camera remote control: Support* BT Call: Support* BT Music Player: Support* Time synchronization: SupportCall History: Support to answer and call back the last one* Anti-lost: Support* Recompose: Support* Sleep monitor: Support* Measures: Support* Heart rate: support* Bluetooth headset: Support* Blood pressure: support* Alarm: Support* Siri: Support* Smart phone information notification: Gmail, CNN APP, ZAKER, LINE, Facebook, instugat, Facebook, Message, QQ,Wechat etc.LANGUAGES:*Language management bracelet:Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Portuguese*Application language management:Chinese, Traditional Chinese, English, Korean, German, Spanish, Japanese, French, Italian, Russian, Portuguese, Arabic, UkrainianFree Gift:YOKULI Blue Storage Box *1