Specifications:Bluetooth 5.1 chip provided 10 meter transmission space, stable performance and low consumption.With ergonomic design, it is comfortable to wear.You can use a single earphone or 2 each time.With large capacity battery, it has long standby time.One button control is convenient to use.Built-in CVC8.0 noise reduction IC brings you excellent listening experience.Item Name: Wireless EarphoneMaterial: ABSBluetooth Version: 5.1Transmission Space: 10mType: 1: Single Display, 2: Triple DisplayNoise Reduction Version: CVC8.0Frequency Range: 2402MHz-2480MHzCharger Input: 5VEarphone Battery Capacity: 50mAh (Included)Charging Box Battery Capacity: 2000mAh (Included)Features: Wireless, Noise Reduction, Long Standby TimeCharging Box Size: 10cm x 6cm x 2.5cm/3.94" x 2.36" x 0.98" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Pair of Earphones1 x Charging Box1 x Charging Cable1 x User Manual