Specifications:This 3 in 1 multi-function headphone can be used as bluetooth headset, TF card music player and wired headset, 3 functions in one product, it not only saves your money but also reduces the weight of carrying many devices. (TF mode only supports MP3 format.)Bluetooth V5.0 gives you the new audio quality.Up to 5 hours of playback time, up to 4 hours of talk time, and up to 150 hours of standby time, the battery life is very long.With enhanced compatibility, it supports almost all audio devices that support bluetooth.You can also connect the device with a 3.5mm audio cable so that the headset will never turn off.The high-definition microphone allows you to make clear calls without carrying a phone.It is also a perfect choice for listening to music, watching movies, online chat and gift giving. Item Name: Bluetooth HeadphoneMaterial: ABSType: M6Play Time: 5 HoursSwitchable Mode: Bluetooth/Radio/TF Card/3.5mm Audio Cable Connection (Audio Cable Not Included)Transmission Range: 10 meters (Barrier-free)Bluetooth Version: 5.0Standby Time: 150 HoursBattery: Rechargeable Battery 150mAh (Included)Functions: TF Card Compatible, Bluetooth Call, Call AnsweringApplicable Product: for Apple, for Samsung, for Huawei, for Xiaomi, for OPPO, for Meizu and other Bluetooth-enabled phones and other electronic devices, for Ipad and other Bluetooth-enabled laptops and desktop computers.Features: Wireless Headphone, Macaron Color, Heavy BassSize: 19cm x 18cm x 7.5cm/7.48" x 7.09" x 2.95" (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.When the headset is connected to the computer, in order to protect your hearing, please turn the computer volume to mute first, and then gradually increase the computer volume according to your own hearing conditions.