Sport Wireless Bluetooth-Compatible Headphones Stereo Earphones Mp3 Music Player Headset Earpiece Micro SD Card Slot

Highly Concerned Chemical: None Material: ABS Category: Earphones & Headphones Charging Method: Charging case Bluetooth Version: 4.With Microphone: Yes Waterproof: No Plug Type: NONE Active Noise-Cancellation: Yes Volume Control: Yes Control Button: Yes Vocalism Principle: Dynamic Wireless Type: Bluetooth Communication: Wireless Style: Wired in-ear headphones Certification: NONE Origin: Mainland China Sport Wireless Bluetooth-compatible Headphones Stereo Earphones Mp3 Music Player Headset Earpiece Micro SD Card Slot Handsfree Mic Features Adopts high-speed Bluetooth-compatible V4.0+EDR standard, to ensure high quality and pure stereo sound transmission. High-speed transmission within 10 meters (Class 2 standard), portable and wireless. Innovated double damping balancing technology, presents perfect music. Long talk time, universal for all phones, music player with A2DP. Function Keys: Volume + -, music playback, pause, previous song, next song. Supports all Bluetooth-compatible devices, then hang up, reject calls, last number call. ll-back. Specification Model: Mini 503 Net Weight: 40g Voltage: 3.7V Channel: stereo Main Chip: 3.0 + EDR Bluetooth-compatible version: V4.0 + EDR Compatible With: V2.1, V2.0, V1.1 Charge / Discharge protection: IC Rechargeable Battery: Lithium Polymer Frequency Range: 2.4G Frequency Response Range: 20-20KHZ Transmission Power: Class2 Transmission Frequency: 2.4GHz Transmission Distance: 10 meters Average Sensitivity: 105DB (AT 1KHZ +3 DB) Supported File Formats: A2DP, Headset and Handsfree mode Package Included 1 x Bluetooth-compatible Headset