Sodee Kids Folding Wired Headphones Small body,but big capacity:Powerful energy,7 days super-long standby time;5 hours super-long talking time,communication without limit;Continuous 4 hours super-long music time,enjoy and never get tired Bluetooth v 4.0 + EDR ,Super mini guitar shape in-ear design ,supports Headset Profile / HandsFree Profile/A2DP Profile/AVRCP Profile. Easy controls for mute, call transfer, voice dial and call answer/end/reject.Automatically connect to the last connected Bluetooth device ,advanced Multi-Point connection technology, support to connect two phones at same time Crystal clear sound based on latest CSR8 broadband Noise/Echo reduction chipset, patent DSP noise cancellation, wind noise cancellation and echo cancellation. Paired with iPhone 5S 5C 5 4S 4, iPods,Samsung Galaxy Note 3, Note 2, S5 S4, S3, S2 Most Android Smart Phones and other Bluetooth-enabled tablets