S530-Plus Mini Wireless Bluetooth 4.1 Stereo In-Ear Headset Earphone

S530-Plus Mini Wireless Bluetooth 4.1 Stereo In-Ear Headset Earphone  Features: 4.1 smart chip; efficient transmission speed. Compact; ultra light design stereo Bluetooth headset; portable and easy to carry. High-fidelity sound quality; wireless songs enjoy Voice report number; low power remind; connect/disconnect remind; boot off prompts. Allows you to conveniently answer calls while driving. Supports two Mobile Phones simultaneously connected. Long battery life; fast charging. Bluetooth V4.1; superior compatibility Compatible for almost all the Mobile Phones and Tablet PC; etc. Powerful noise cancellation circuit (Active Noise Reduction) Wired and Bluetooth automatically switch to support audio input  Specifications: Drive: 40 mm Impedance: 32 OHM Bluetooth version: Bluetooth v4.1 + EDR Power Level: CLASS II Output Power: 30mW Weight: about 4g Talk time: about 4 hours Music for about 3 hours The standby time: about 3-4 days Bluetooth distance: 10 meters barrier Frequency response: 20-20000 Hz Operating voltage range: 3.0V-4.2V Microphone sensitivity: -42dB With A2DP / AVRCP high-quality stereo audio transmission and remote control protocol Charging time: about 1 hour (Power indicator Charging) Dimensions: 20mm * 15mm * 18mm  Compatible: Compatible with Android; Apple; Microsoft; (IOS cell phone has power display) Super upgrade: Upgrade styling; wearing more comfortable; Upgrade Bluetooth version to 4.1; the connection is more stable; Upgrade battery; standby time is longer; Upgrade the sound quality; more stereo; more shocking! Upgrade the charging ports; USB micro ports compatibility is better! Upgrade packaging; more beautiful; more secure! Package Content: 1 x Bluetooth Earphone 1 x USB Cable 1 x User Manual