Specifications: General Specification Brand Name Xiaomi Product Name Square Box Ⅱ Color White Net Weight (g) 155g Dimensions (mm) 154.5mm*60mm*25.5mm Technical Parameters Microphone Yes Connectivity 3.5mm line-in, Bluetooth connection Bluetooth Version V4.2 Transmission Distance ≤10m Support Audio Protocol A2DP, AVRCP, HFP Output Power 2.5W*2 Speaker Impedance 3Ω Frequency Response 100Hz-18kHz Frequency 2402MHz-2480MHz Battery Capacity 1200mAh Input Voltage 5V 1A Working Time (h) About 10 hours (40% volume) Package Included: 1* Original Xiaomi Square Box Ⅱ Bluetooth Speaker Ships in 7 business days. It is shipped from China. Delivery is provided by China Post Air Mail. Delivery time depends on the couriers, local customs in your country also holidays, weather conditions. Usually it takes from 39 to 60 days, depending on the customs at your country.