Specifications:This 3 in 1 multi-function bluetooth headphone has the function of 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.)You can use this headphone to experience new bluetooth V5.0 wireless 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.It supports mostly 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.The best choice for listening to music, watching movies, online chat, etc. it is also a good choice for gift giving.With colorful LED, the appearance is really cool and distinctive.Item Name: bluetooth-compatible HeadphoneMaterial: ABSType: 66BTPlay 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-compatible 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: Stereophonic, Wireless Headphone, Heavy BassSize: 17.5cm x 15cm x 6cm/6.89" x 5.91" x 2.36" (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.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.Package Includes:1 x bluetooth-compatible Headphone1 x USB Cable1 x User Manual