This Bluetooth Headphone Product Features:- Acoustic insulation that improves sound quality;- Retractable legs for better carrying;- Perfect fit to the head and ears;- Bluetooth, micro SD, FM radio and MP3.- Compatible with Bluetooth Enabled Devices- Built-in microphone;- Noise reduction;- LED light randomcolors Technical Information:- Version: V5.3- Type: Headphones- Transmission Range: 10m- Battery Type: Lithium- Battery: 200mAh-Charging Time: 1 ~ 2 hours- Radio Frequency: 2.4 Ghz- Standby Tim
