Yunir Smart Glasses - Bluetooth V5.0 UV400

Specification: Item Type: Smart Glasses Material: PC, TAC UV Protective Grade: UV400 Connection: Bluetooth V5.0 and EDR Protocol Support: HFP, A2DP, AVRCP Connection Distance: 10 to 15M Microphone: Built in Playback Time: 3 to 4 hours Talk Time: About 5 hours Charging Time: 1.5 to 2 hours Standby Time: About 200 hours Battery Type: Built in 120mAh lithium ion Battery How to Use: Just connect the Bluetooth after powering on the device packing list: 1 x Smart Glasses 1 x Glasses Cloth 1 x Glasses Case 1 x User Manual 1 Cable