Features: 1.Flexible, light weight,comfortable fit and durable design.Best choice when you do sports. 2.Adopt true wireless technology, enjoy your wirelessly sports. 3.Double-ear main and subsidiary earpiece design, innovative and excellence. 4.Intelligent charging box provides fast charge, worry free for endurance. 5.Strong compatibility Specification: Bluetooth version: Bluetooth v4.2 + EDR Impedance: 16Ohms Working Voltage: 3.2V-4.2V Sensitivity: -42db±2db Frequency Range: 2.4-2.48Ghz Drive: 15mm Impedance: 32 OHM Bluetooth use band: 2.4GHz Power level: CLASS II Output power: 30mW Bluetooth distance: 12 meters barrier Frequency response: 20-20000Hz Operating voltage range: 3.0V-4.2V Mitou sensitivity: -42dB With A2DP / AVRCP high-quality stereo audio transmission and remote control protocol Powerful noise de-noising circuit (active noise reduction) switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully) Charging time:1.2 hour (power indicator charging: red light, full power: red light off (blue light) Talk time:3-4 hours music time:2-3 hours Standby time is about 120 hours Charging time:90 minutes Battery capacity 50MAH Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger) Package Includes: Standard: headset + charging line + manual + charging box(All the charging box are white, if you mind this, pls purchase cautiously, thank you)
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