About this item 【1.39 inch HD Display】- This smartwatch has a 1.39” TFT LCD Full Touch Display with a 2D High Hardness Glass for super protection and a high resolution of 240*240 pixels The watch has 650 NITS Peak Brightness【Full Metal Body】- This watch is long lasting and durable with its metal body feature 【 Battery Life】- The watch can work for 3 Days with Bluetooth Calling ( Normal Usage )*, 8 Days without Bluetooth Calling. System requirements: Bluetooth version 5.0 and above. IOS 7.0 and above, Android version 4.4 and above. Charging Specs - The watch needs to be charged for 3 hours to reach 100%. The charger should be a 3.7V to 5V adapter or any laptop output. For a bare minimum of 20% charge the watch needs to be charged for about 30-40 mins You cannot store Music in the watch, you can only control the music.Q122.【Bluetooth Calling Watch】- Fire-Boltt Talk enables you to make and receive calls directly from your watch via the built-in speaker and microphone. This smartwatch features a dial pad, option to access recent calls & sync your phone’s contacts There is no volume control, however when connected to bt calling you can control the volume of the call. 【Voice Assistant】- Command your mobile phone with your smartwatch, the watch has a voice assistant built in to make work easy and fast. Tap on the AI feature to activate the mobile phone voice assistant and make calls smoothly, or hear the weather update