Portable Mini Bluetooth 4.0 Speaker Wireless Speaker Support Hands-free Function for Computer Car iPhone Cellphone Cowboy style with a carabiner, perfect for outdoor sports activities such as hiking,camping and cycling; easy to carry Supports AUX, Bluetooth and NFC wireless connection, compatible with any devices, makes it easily to amplify your device's speakers Wireless Bluetooth Speaker with excellent sound quality for its size. Support Hand-free, intelligent digital noise reduction result in high definition sound, you can answer the phone through built-in microphone Play time: 3-5 hours (Bluetooth/NFC), 8-10 hours(line in)