Model DK118-V1 Quantity 1 piece(s) Material Plastic Color Black Type Electronic Device Function Suitable for cell phone GPS speaker and other device with Bluetooth function. Bluetooth Version v2.0 + EDR Transmission Range m FM Frequency 85~108 MHz Speaker Power 0.25 W Interface Mini USB Power Supply Built-in 350mAh lithium polymer battery Working Current 0.5A Other Features Applicable to speeds of 120km and above; Automatically and safely receive phone calls; Master Bluetooth BC5 program; Advanced A2DP & EDR Bluetooth feature; Stereo music / audio functions (phone / MP3 / GPS using A2DP transmission); DSP noise-canceling feature; Standby time: 240 hours; More than 8 hours for continuous talk or listening to music; Charging time approximately 3 hours; National Level 5 waterproof standard Packing List 1 x Bluetooth device 1 x EU plug power adapter (100~240V) 1 x Earphones 1 x USB cable (60cm) 2 x Clips 2 x Screws 1 x Chinese / English user manual