Q11 Dual-mode Bluetooth Headphones Smart Watch,1.58 inch, Support Bluetooth Call Heart Rate 1. Functions: Bluetooth calls, 4 sets of menu styles, support for more than 500 dials, breathing training, custom dials, step counting, brightness adjustment, multi-sports mode, sleep detection, heart rate, blood pressure, blood oxygen, information push, remote music, remote photography, real-time weather, SOS, screen-off clock, vibrato control, find phone (connect to phone), Bluetooth music playback, password protection, calculator, calendar, timer, stopwatch, exercise track, alarm clock, password protection 2. APP supports languages: Chinese (Simplified), English, Russian, Spanish, German, Italian, French, Portuguese, Polish, Dutch, Greek, Turkish, Romanian, Japanese, Chinese (Traditional), Hebrew, Czech, Slovak, Hungarian, Arabic, Indonesian, KoreanKorean, Vietnamese, Thai, Persian, Ukrainian, Malaysian, Burmese, Danish, Latin, Brazilian, Croatian, Swedish, Hindi, Serbian, Finnish 3. Device-side supported languages: Chinese (Simplified), English, Russian, Spanish, German, Italian, French, Portuguese, Polish, Dutch, Greek, Turkish, Romanian, Japanese, Chinese (Traditional), Hebrew, Czech, Slovak, Hungarian, Arabic, Indonesian, Korean, Vietnamese, Thai, Persian, Ukrainian, Malay, Burmese 4. APP: REFIT 5. Chip: 7012 6. Button type: 2 physical buttons 7. System: Support Android 5.0 and above, iOS 9.0 and above 8. Heart rate sensor: HR3300 9. Bluetooth: Dual mode: BT3.0; BLE5.0 10. Bluetooth transmitter: Support 11. Built-in USB flash drive: 32GB 12. Built-in speaker: 1W 13. Built-in microphone: high sensitivity 14. Recording function: background hidden recording 15. Built-in TWS earphones: 23mAh 3~5 hours of calls or music playback 16. Time setting: manualautomatic 17. Craftsmanship: zinc alloy + IML 18. Battery capacity: 320mAh 19. Battery life: 5-10 days of normal connection and 25-35 days of standby. (Connection and use depend on personal use) 20. Charging method: magnetic charging 21. Charging time: ab