XO BS27, Bluetooth ακουστικά handsfree στέκα, μαύρο

Sound Channel System Dual Channel Control mode 3 physical buttons Bluetooth version: Bluetooth V5.0 Support Bluetooth protocol: A2DP v1.3, AVRCP v1.6, HSP, HFP Receiving sensitivity: -85dBm Bluetooth effective distance: : 10M Headphone amplifier type: chip built-in Audio signal-to-noise ratio: S/N -93dB 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 up to 64gb