SODEE Bluetooth/Wired Headphone foldable for easy storage with detachable 3.5mm audio cable with in-line MIC for kids or Adults Features: Safe Volume LimitingTwo built-in volume limiting mode.Safe mold for children: when listening by bluetooth or TF card,volume limited to 93Db max;Excellent mold for adult: when listening by wires, with excellent sound quality,volume limited to 108dB max Foldable and Seek Design Lightweight and comfortable concept, featuring 40mm drive units. Large Angle of rotation make sure that it can more fit your wear it .Soft leatherette foam ear pillows ensure supreme comfort Wireless and Wired Bluetooth and 3.5mm jack allow you to easily connect every your electronics, such as mobile phone, tablet, and it's very convenience to operate. Multifunction It support Micro SD(TF) Card,FM Radio,Handfree calling?Remote control etc. At the end of the plug, we have a standard 3.5mm jack that has a chunky enclosure, so you can plugging these headphones into other portable players. Ecellent Sound Quality Three kinds of frequencies are more tend to balance. Can adapt all kind of Music stlye. Satisfy all music lovers' needs. Specifications: Bluetooth:4.0 Standard charge time:Approx.2 hours. Frequency response:20-2000Hz. Speaker dimensions:40mm. Speaker impedance:32ohm . Sensibility:108+/-3dB. Standby time:120h Support:A2DP,AVRCP,HSP,HFP Package: 1 * Headphone. 1 * USB Cable. 1 * Audio Cable. 1 * User Manual. Notes:Long press the black ATS key which can switch mode-FM Stereo Radio/Micro SD Player