Description:This charging compartment is multifunctional since that it can be used as a mobile phone holder to liberate your hands. In addition, it can charge the headset but also your phone for emergency.Thanks to the CVC8.0 intelligent noise reduction, you can enjoy a clearer and more stable call without environmental noise.Made of premium ABS material, it is durable and reliable. You can use it in rainy days, for sports owing to its living waterproof.The length of the product is 7.8cm, the width is 4.9cm, the height is 2.7cm.It can be used for sports, home, office, travel, etc. You can enjoy a music feast with the help of our product.Item Name: Bluetooth-compatible EarphonesMaterial: ABSColor: Black Product Model: F9 Bluetooth-compatible Version: 5.0 Channel: Binaural Stereo Style/Type: In-ear Noise Reduction Version: CVC8.0 Working Distance: Connection Within 10m Earphones Battery: Built-in 50Ah Rechargeable Battery(Included) Charging Compartment: Built-in 2000Ah Rechargeable Battery(Included) Automatic Boot: Support Automatic Pairing: Support Music Playing Time: about 300 Hours (Used with Charging Compartment) Talking Time: about 320 Hours (Used with Charging Compartment) Features: Waterproof, Binaural Stereo, In-earSize Details: 7.8cm x 4.9cm x 2.7cm/3.07" x 1.93" x 1.06" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Pair of Bluetooth-compatible Earphones 1 x Charging Compartment 1 x Charging Cable