Product parameters： Drive: 15mm Impedance: 32 OHM Bluetooth version: Bluetooth v4.2 + EDR Bluetooth use band: 2.4GHz Power level: CLASS II Output power: 30mW Bluetooth distance: 10 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 about 1.2 hour (power indicator charging: red light, full power: red light off (blue light).) Product Size: Length 4.5cm. Wide 1.6cm. High 4.5cm Product net weight of about 8.5g Talk time is about 4-5 hours music time about 4-5 hours Standby time is about 120 hours Charging time is about 90 minutes Battery capacity 65MAH Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger) Compatible phone: compatible with Andrews, Ios, Microsoft, Saipan system with 99% of the Bluetooth phone Full set of weight: 149 g Packing size: 9.5 * 3.5 * 13 cm Standard: headset + charging line + manual + box About Us: We guarantee that If there are any problems caused by the product quality, please don't hesitate to contact us. We will offer you a replacement or 100% Money Back. We promise that we never let you suffer any loss. we are willing to solve all issues for our customer. Thank you!
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