Yunir Smart Glasses - Bluetooth V5.3 160mAh

Specification: Item Type: Smart Glasses Material: TR Connection: Bluetooth V5.3+EDR Protocol support: HFP, HSP, A2DP, AVRCP Connection distance: approx. 10-15m / 32.8-49.21ft Microphone: Built-in Playing time: about 4 hours Talk time: about 5 hours Charging time: about 1.5-2 hours />Standby time: about 100 hours Battery type: Built-in 160mAh lithium-ion battery How to use: Connect to Bluetooth after turning on at Packing List: 1 x Smart Glasses 1 x Glasses Cloth 1 x Glasses Box 1 x user manual (English language not guaranteed). 1 × Power Cord