Bluetooth V4.0 CSR headset portable with round neckband for sturdy fitting. Inbuilt hidden Mic for calls, support multiparing. Features: - High-quality sound over Bluetooth - Provides hands-free phone solution - Lightweight design for easy carry - Magnetic earphone neckband for comfortable use Technical Specifications: - Product SKU: A10523-B - Bluetooth: Bluetooth V4.1 - Range: Up to 10m - Talk Time: Up to 3 hours - Play Time: Plays up to 5 hours - Standby Time: Up to 200 hours - Charging time: Up to 2 hour - Frequency Response: 20Hz - 20KHZ - Support Profile: A2DP / AVRCP1.4 / HFP - Product Weight: 30g(Approx.) Package Content: - Wireless earphone - Micro USB cable - User manual What's in the box Astrum Bluetooth Earbud with Neckband