Advanced Bluetooth Flat Panel Headphone with Mic Flat speaker�DSP amp We successfully reproduce the concept of "Hi-fi speaker on the ear" by our new developed flat panel speaker. Moreover, we attached the DSP to tuning and balancing Low&High range sound. We can use it wireless and wired. The Fastest Response Recommend to use it for Games by New flat panel speaker's characteristic that sound response faster than conventional cone speaker. Available 20 hours continuously replay. Pursuing comfortness with protein skin ear pad We use and finished it for comfortableness a big, thick and soft protein skin leather as the ear pad that covers the ear entirely. Breathability is also good and can be used comfortably during exercise. Bluetooth�MIC Stress-free phonecall by its attached Mic. Also, it has Pairing Lock function that we don't need worry about interfering another Bluetooth terminals. To connect to another Bluetooth device, it needs to unlock by pressing +&- buttons same time. Specifications Product Name : F01B (Black) Bluetooth Flat Panel Powered 'HeadSpeaker' Wired & Wireless with Microphone(2 way) Bluetooth: V4.2+APTX-LL Correspond Profile: A2DP1.2/HSP1.2/HFP1.6 Transmission Distance: around 10m Continuous Replay time: About 20 Hours Charging Time: About 3.5 Hours Standby Time: About 1000 Hours Battery: Lithium-ion battery 3.7V/600mAh Frequency Range: 60Hz�20KHz Frequency Range of Driver unit: 20Hz-25kHz Driver unit: Φ60mm Flat Panel type speaker Amp. Output: 46mW Sound pressure sensitivity: 100dB/mW Weight: 300g Material: Body: PC+ABS | Head-pad, Ear-pad: Protein skin leather Dimensions: 186mmx200mmx78mm Accessories : 3.5/6.5 to 3.5mm jack cable, USB cable for Battery-charge Hands-free phonecall: Available when it connected to Bluetooth smartphones (Connected devices should correspond to Bluetooth profile HFP1.2 or 1.6) T/T (HongKong) in advance Price point : FOB Japan (Direct drop shipment from Japan) MOQ: 300set