LIVE UP YOUR SOUND IN YOUR MIND! FEATURES: • Provide optimal voice input for internet communications, multimedia and interactive audio application. • Adjustable headphone for easy positioning. • Bluetooth Mode, TF Card Mode, FM Radio Mode and AUX-in Mode. • 5 Color option: Yellow/Black, Grey/White, Purple/White, Blue/White & Red/Black. SPECIFICATONS: Bluetooth Version: V3.0 Support File: MP3/WMA/WAV/SBC Transmit Distance: 8-10 meters Battery Specifications: 250mAh Signal to noise ration: 90dB Operating Time: 5-8 hours Standby Time: ~250 hours Remarks: All specifications above are subject to 10% tolerance of manufacturing standard.