The LFC Bluetooth Headphones features: Suitable for all smartphones and Bluetooth enabled devices headphones, with silver Liverbird crest design.   Specifications: Bluetooth V4.1 + CSR for super quick connectivity and ata transfer Music play time – over 12 hours Receiver Sensitivity – 105 +/- 3 dB Bluetooth distance – 10-15 metres Product net weight – 230g Frequency range – 20/20 000Hz Battery – Li-Polymer; 360 mAh Talk time – 8 hours Standby time – 200 hours Built-in microphone for hands free use Multi-functional controls and remote Cushioned on-ear design Adjustable for comfort Compact foldable design Micro-USB cable included Auxiliary cable