Brand N/A Model E305 Quantity 1 Color Silver grey + green Bluetooth Version V3.0 + EDR Operating Range 5~8 meter Compatibility V2.1 / 2.0 Microphone Yes Channels 1 Total Power 5W Impedance 4ohms Signal to Noise Ratio(SNR) >/= 85dB Sensitivity 80dB Radio N/A Supports Music Format MP3 WMA WAV Power Supply Built-in Battery Built-in Battery Capacity 700mAh Compatible With Cellphone Tablet PC etc. BQB Certification No Other Features Frequency range: 2.4~2.48GHz; Support hands-free calls / AUX function; Interface: Micro USB / TF / 3.5mm; Support TF card up to 32GB Packing List 1 x Speaker 1 x USB cable (27cm) 1 x Strap (17cm) 1 x 3.5mm audio cable (102cm) 1 x English manual