Audio-Technica ATH-CKR 55 BT BK Earphones

Audio Technica ATH-CKR55BTBK Sound Reality Bluetooth Earphones Black With the ATH-CKR55BTs newly designed 10.7 mm drivers and Bluetooth® wireless technology (including access to the high-quality aptX and AAC codecs) you get powerful, full-range audio that goes wherever you go. The headphones also feature an in-line mic and controls, allowing you to answer calls, adjust volume and handle playback of music and videos on compatible smartphones and other devices, plus a built-in amplifier to enhance the audios depth and resolution. Machined brass stabilizers absorb unwanted vibration for clearer mid and high frequencies. The neckband design of the ATH-CKR55BT conveniently situates the in-line 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. Also included are four sizes (XS, S, M, L) of interchangeable eartips, 30 cm (11.8") USB charging cable and a protective pouch. Product Features Type: Dynamic Driver Diameter: 10.7 mm Frequency Response: 5 35,000 Hz Sensitivity: 103 dB/mW Impedance: 16 ohms Battery: DC 3.7 V lithium polymer rechargeable battery Battery Life: 7 hours continuous use (200 hours standby) Charging Time: Approx. 3 hours Weight:17 g (0.6 oz) Accessories Included: 30 cm (11.8") USB charging cable, eartips (XS/S/M/L), secure-fit battery clip, protective pouch Type (Microphone): Condenser Sensitivity (Microphone): -44 dB (1V/Pa, 1 kHz) Frequency Response (Microphone): 100 - 10,000 Hz Polar Pattern (Microphone): Omnidirectional Communication System: Bluetooth Version 4.1 Support Codec: AAC