Product Specifications: Amplifier output power: RMS 2x18MW (THD = 10%) power amplifier SNR: ≥80dB Input voltage: 3.7V rechargeable lithium battery Playing time: 6-8 hours of talk time: 8-10 hours Charging time: 1-2 hours Charging input voltage: DC5V 150MAH Speaker Specifications: 2x16Ω20MW Φ10mm Frequency range: 20Hz-20KHz Sensitivity: 80db ± 2db SNR: ≥80dB transmit / receive frequency: 2.4 --- 2.48GHz distance: 10 meters barrier Supported models: all Bluetooth-enabled MP3 / 4 / IPOD player to answer up to 15 hours of talk time is very comfortable surrounded by the neck design, whether indoors or outdoors can make you enjoy the fun of music to bring you products Bluetooth enabled mobile phone intercom function PC or network intercom wireless music (such as QQ, MSN ... dialogue) mobile phone Bluetooth wireless intercom function PC to listen to music or network intercom function long time stylish exterior design and Ultralight volume design soft material, waterproof and sweat-fidelity sound quality, provide you with high quality music enjoyment mini-button design, simple one with two powerful functional operation, can be connected to two mobile phones and two playback devices Bluetooth pairing How Pairing: (1) under the long off press POWER / PLAY button for 5 seconds to enter pairing status (when the indicator appears red / blue flash alternately). (2) open the phone settings, turn on Bluetooth, select Bluetooth search function to search select HV-803 Bluetooth headset on the phone to confirm the connection, some phone will need to enter the password (0000), the headset is connected across the blue indicator light blue 5 seconds When the flash is paired two. (The phone is paired with a Bluetooth phone support some power display.) A headset simultaneously connect two phones (1) After the first mobile phone connection is successful, after long press POWER / PLAY button 3 seconds long by 5 seconds off into another hand pairing status (when the indicator appears red / blue flash alternately). (2) the second mobile phone paired mobile phone after the first re-select the HV-803 and then connect again, this time can be achieved using two phone headset. (3) the state of music: after the first phone to play, in order to achieve the second mobile phone player must first pause the first mobile phone, then you can play the sound of the second mobile phone (Note: Due to different mobile phone brands, conversion time is different (4) call status: After switching on the phone first, then the second will be called the phone calls have beep, to answer the second call to the mobile phone must first hang up the phone call.