Inhouse product
■Sound Channel System Dual Channel ■Control mode 3 physical buttons ■Active and passive: active ■Bluetooth solution BK: 3266 Bluetooth version: Bluetooth V5.0 Support Bluetooth protocol: A2DP v1.3, AVRCP v1.6, HFP v1.7, HID v1.1, AVCTP v1.4, AVDTP v1.3, and SPP v1.2 ■Bluetooth operating frequency: 2.4GISM band, 2.402-2.480GHZ ■Receiving sensitivity: -90dBm ■Bluetooth effective distance: :>10M ■Headphone amplifier type: chip built-in ■Audio signal-to-noise ratio: S/N ≥92dB ■Frequency response: 30Hz~20KHz ±1dB Speaker unit: speaker 1406-32 true copper ring speaker 32ohm ■Microphone MIC MEMS, condenser microphone, -42dB+-2, ■Built-in battery: Lithium battery-3.7V, 100mAh ■Standby time: about 30 days ■Music time: about 8 hours (80% volume) ■Talk time: about 7.2 hours (80% volume) ■Charging input standard: DC5V-500mA Micro USB Charging time: about 1.5-2H ■Battery cycle life: charge and discharge cycle ≥300 times |