Specialities- Built-in HD Microphone with CVC6.0 noise cancellation.High Bass, Music, Call Control, Volume control etc. Features Suitable for sports, leisure, office people, can use in travel, shopping, exercise, fitness, cycling, playing, dancing, entertainment, office, etc. JOKIN HIGH BASS WIRELESS BLUETOOTH HEADPHONE WITH PURE HIGH BASS SURROUND AND SOUND CLARITY GAURANTED . 1)- High-power amplifier chip and advanced circuit design. Using strong magnetic, full frequency loudspeaker, sound effect is much more loud and clear. 2)- 3.5mm audio port compatible for almost all models cell phone and table PC. 3)- Built in microphone adopts noise canceling technology to obtain the high quality voice input. 4)- It can also use connect line to be used as a normal headset. 5)-Function: Adjust the volume, switch songs, answer calls, reject call, hang up the phone, Bluetooth playback, speakerphone, telephone replay, voice prompts, one with two, power display, speak call number, English switch , smart shutdown. Specification : Bluetooth Version: V3.0 + EDR Operation Distance: 10m Range of frequency: 2.4 to 2.4935Ghz ISM band Specification of MP3/FM Pc interface USB2.0 Music format: Mp3/wma TF CARD SUPPORT: 128m-32GB FM frequency response: 875-108Mhz Technical Specification of Headphones Type stereo headphone with Mic Speaker 4mm Sensitivity 115db SPL at 1 KHZ Impedance 32 Frequency Response 20HZ-20KHZ Rated Power 40mW Power Capability 100mW Cable length 1.5m Microphone Unit 4.5mmx2mm -58db+3db Plug Type 3.5mm stereo Feature Allow you to enjoy digital-quality music wirelessly and convert between music and phone calling mode freely. Support TF card Support FM, can receive high-quality stereo radio. Support Bluetooth stereo device to receive A2DP stereo music or compatible device that support Bluetooth stereo audio.