Description 1)Stopwatch function 2)Support hands-free calls 3)Bluetooth 4.1 4)Material: Aluminum+ Silicon 5)Answer or Dial calls from your wrist 6)1.48" Capacitive Touch Screen TFT LCD 7)Time / Date / Week / Battery state display 8)Ringing reminder when you receive a call 9)Display the number or name of incoming calls 10)Play the music in your phone (After Bluetooth pairing) 11)Dial Size: 4.6 x 4.2 x 1cm / 1.81 x 1.65 x 0.39 inch 12)Ringing reminder once your mobile phone disconnected 13)Sync phone book / SMS / call history (For android phone only) 14)Altitude Meter, Pedometer, Photograph, Barometer, Vibration 15)Remote taking photo function: You can control your cellphone to take photo from your wrist (For android phone only) 16)Ring reminder when your Android 2.3 or above smart phone receive a message (including Wechat, Facebook, WhatsApp, Skype) (For android phone only) Anti-lost alarm function: When cellphone left watch alarm automatically, after a certain distance to avoid lose the phones Note: Android System can support all function in the description But IOS only support: Pedometer, Calendar, Call Sync, Calculator, Clock, Stopwatch Specifications: 1. Material: Silicone and Aluminum 2. Weight: 3.68oz / 76g 3. Color: Black/White/Red 4. Dimensions: (9.45 x 1.57 x 0.39)" / (24 x 4 x 1)cm (L x W x H) 5.Bluetooth Version: Bluetooth V3.0+EDR 6.Bluetooth Protocol: A2DP + HFP 1.5 + HS P 1.2 7.Range of Frequency: 2.4GHz spectrum 8.Ambient Noise: 75dB 9.Transmitting Range: 10m 10.Language Support: English, French, Spanish, Portuguese, Korean, Italian, 11.German, Indonesian, Finnish, Thai, Turkish, Russian, Arabic, Swedish 12.Charging Time: about 1 hour 13.Talk Time: about 3 hours 14.Music Play Time: about 6 hours 15.Standby Time: about 160 hours 16.Power Supply: Built-in 230mAh rechargeable battery Package includes: 1 x Bluetooth Watch 1 x usb cable 1 x User Manual