Model：BIVA  TWS -03 – Warranty 06 Month  Wireless Version: 5.3 Transmission distance: 10M ( free space) Frequency: 2.402-2.48GHz Sensitivity: -42±2dB Earbuds battery: 30mAh Charging case battery: 300 mAh Talking time: 4.5 H Music time: 5 H Charging time: 1-2hours Extra time with charging case: 15H Input voltage: DC5V/1A 1. 1:1 Same size 2. touch control 3.Compatible with IOS&Android 4.High performance sound quality & crystal &clear call Color：white wireless Bluetooth/tws earphone Warranty 06 Month