Audio-Technica CK200BT Wireless In Ear Bluetooth Headphones

The headphones feature an in-line mic and controls, allowing you to answer calls, adjust volume and control music playback on compatible smartphones and other devices. The ATH-CK200BT’s design conveniently situates the mic and controls for easy access and places the battery case on the upper back where, if desired, it can be attached to your shirt collar with the included clip. The internal battery powers the headphones for up to 7 hours (200 hours standby) and can be recharged with the included 30 cm (1') USB charging cable. Features Bluetooth wireless technology with in-line mic and controls for answering/ending calls, controlling music & video playback and adjusting volume on connected devices Powerful 9 mm drivers Neckband design with clip for attaching battery pack to shirt collar Internal battery provides up to 7 hours of continuous use (200 hours on standby) on a full charge Includes eartips (XS/S/M/L) and 30 cm (1') USB charging cable Compact housings provide good sound isolation and a comfortable, secure fit Specifications Type: Dynamic Driver Diameter: 9 mm Frequency Response: 20 - 24,000 Hz Sensitivity: 100 dB/mW Impedance: 16 ohms Battery: DC 3.7 V lithium polymer rechargeable battery Battery Life: 7 hours continuous use (200 hours standby) Weight: 14 g (0.5 oz) Charging Time: Approx. 3 hours Microphone Type: Condenser Microphone Sensitivity: -44 dB (1V/Pa at 1 kHz) Microphone Frequency Response: 100 – 10,000 Hz Microphone Polar Pattern: Omnidirectional Accessories Included: 30 cm (1') USB charging cable, eartips (XS, S, M, L), secure-fit clip Notes: Compatible Bluetooth Profiles: A2DP, AVRCP, HFP, HSP Support Codec: SBC Bluetooth® Version: Bluetooth Version 4.1 Output: Bluetooth Specification Power Class 2 Operating Range: Line of sight - approx. 10 m (33')