■Sound Channel System Dual Channel
■Control mode 3 physical buttons
■Active and passive: active
■Bluetooth solution BK3266 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: 2.402GHz-2.480GHz
■Receiving sensitivity: -89dBm
■Bluetooth effective distance: :Rating 3-5mW
■Headphone RF power level Class2
■Headphone amplifier type: chip built-in
■Audio signal-to-noise ratio: S/N ≥92dB
■Frequency response: 50Hz～20KHz
■Speaker unit: real copper ring full-range speaker Φ10mm@16ohm
■Microphone MIC MEMS, condenser microphone, -42dB+-2,
■Built-in battery: Lithium battery -3.7V, 150mAh, + protection board
■Standby time 7-8 days
■Music time: about 11 hours (70% volume)
■Talk time: about 11 hours (70% volume)
1■Charging input standard: DC5V-1000mA TPYE-C Charging time: about 1.5 hours ■Battery cycle life: charge and discharge cycle ≥300 times
