KALOAD I7S Mini Stereo Wireless Bluetooth 4.1 Noise Reduction In-ear Earphone with Charging Box#white - White (white)

Specification: Impedance: 32 OHM Bluetooth version: Bluetooth v4.1 + EDR Bluetooth use band: 2.4GHz Power level: CLASS II Bluetooth distance: 10 meters Frequency response: 20-20000Hz Operating voltage range: 3.0V-4.2V Mic sensitivity: -42dB With A2DP / AVRCP high quality stereo audio transmission and remote control protocol Talk time: 4-5 hours Music time:4-5 hours Standby time: 100 hours BatteryCapacity: 65mAh*2 Features: 1.Multi-points connection: can connect to two devices at the same time. 2. With noise canceling technology, make the sound more clear. 3.Power capacity will show on your Iphone, you can see the power situation anytime, do not worry about the electricity ,make your life without worry 4.Intelligent compatibility:perfectly compatible with all kinds of Bluetooth product.