Product Name: Armor sports Bluetooth headset Bluetooth version: V4.1 Charging: Power adapter output (DC5V 150mAh) Battery indicator: a high-performance lithium polymer battery Bluetooth indicators: Class 2 Support Agreement: Headset / handsfree / A2DP / AVRC / APT-X talk time: about 8 hours Playing time: about 8 hours Standby time: about 180 hours Audio Frequency Range:20Hz-20kHz BT radio frequency:2.400-2.481GHz Output:16Ω 3mW Sensitivity:100-105dB Prompt language is English , not Chinese ! Solid BASS.High-fidelity, Strong signal, Fast transfer speech, and Low power consumption Build-in microphone and hands-free, sweat- and water-resistant design for increased durability Up to 8 hrs play & talk time and 180 hrs standby time Compatible with most Bluetooth devices. Suitable for iPhone 6S 6 6plus 5S 4S GalaxyS7 Edge S6 S5 and iOS Android Smartphones. Brand Dacom SKU 100027419_NP-1019409551 connector_1 3.5MM Wearing type Over the Ear wireless_connectivity Bluetooth