Features Item type:I9S Color Bluetooth earphone Frequency response: 20-20KHz Signal to noise ratio: ≥ 80db Bluetooth version: V4.2 + EDR Speaker: 10mm Transmission range: 15 meters Talk Time:1.5 hours Standby Time:100 hours Charging Time:1 hours Charging Box Capacity:450mAh Note: This product does not have a retail package box! ! ! 2 x i9s tws bluetooth earphones (left and right earphones) 1 x Charging box 1 x USB Charging Cable 1 x User Manual Note: This product does not have a retail package box! ! !