... OEM Logo Printing Hot!!! Cute Pretty Design Bluetooth Speaker Features: Customized Packing1.High magnetic speaker ... your MP3,MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook computer, Hi-fi ... )Frequency range2.401-2 .480 GHz The receiver sensitivity <-90dBm, BER <0.1%SNR89dB ... °C ~ 55 °CPower supply5V/1000Ma, AC power adapter.Spread spectrumFrequency Hopping Spread SpectrumWorking timeOne full ...