Bluetooth remote control that smoothly and efficiently handles multiple functions of Astell & Kern AK100 II / AK120 II / AK240 / AK320 / AK380 digital audio players and home audio systems AK T1 / AK500N. Aluminium wheel key allows easy and precise volume adjustments, and control of other essential functions with a touch buttons. Mode button allows to choose from among the AK T1's many functions. Dimensions: 70 x 21,4 x 90 mm. Weight: 123 g. Bluetooth version: 3.0. Power: Micro USB. Battery life: max. 700 hours. Range: max 10 m.