REMAX RB-T28 Mini Call bluetooth Earphone Single Sports Headset with HD Mic for Xiaomi Samsung

Specification: Product model: RB-T28 bluetooth version: bluetooth 4.2 Transmission distance: 10M Frequency response : 2.402GHZ ~ 2.480GHZ Output sensitivity : -6 ~ +4dBm Microphone sensitivity :-42DB Battery capacity: 80mah Resistance: 32 Rated power : 3mw Drive unit : 10mm Line length: 25mm Play time: 4H Standby time: 70h Charging time: 1.5h Support function HFP /HSP Music time: 4 hours Talk time: 4 hours Boot standby time: 80 hours Charging time: 1.5 hours Weight: 7.3G Headphone size: 25*29.5*54mm Features: Ultra-thin body, HD call. Youthful fashion color, metallic brushed texture. Silicone ear hooks are used with earplugs for a firm and comfortable fit. One for two, intelligent shutdown (the headset automatically shuts down 5 minutes after disconnection). The phone displays real-time power (IOS system only).