■Sound Channel System Dual Channel
■Control mode 3 physical buttons
■Active and passive: active
■Bluetooth solution Jerry: 6956 Bluetooth version: Bluetooth V5.0
■Support Bluetooth protocol: A2DP v1.3, AVRCP v1.6, HSP, HFP
■Bluetooth operating frequency: 2.4GISM band, 2.402-2.480GHZ
■Receiving sensitivity: -85dBm
■Bluetooth effective distance: :<10M
■Headphone amplifier type: chip built-in
■Audio signal-to-noise ratio: S/N ≥93dB
■Frequency response: 50Hz～20KHz ±1dB Speaker unit: speaker 14MM true copper ring speaker 16ohm
■Microphone MIC MEMS, condenser microphone, -42dB+-2
■Built-in battery: Lithium battery -3.7V, 170mAh + protection board
■Standby time: about 170 hours
■Music time: about 11 hours (80% volume)
■Talk time: about 9.5 hours (80% volume)
■Charging input standard: DC5V-60mA Micro USB Charging time: about 1.5-2H ■Battery cycle life: charge and discharge cycle ≥300 times
■Function: Insert card TF card
