Hama Soundcup-L, 24 W, 180 - 20000 Hz, 4 Ω, 1%, Wired & Wireless, A2DP, AVRCP, HFP Hama Soundcup-L. RMS rated power: 24 W, Frequency range: 180 - 20000 Hz, Impedance: 4 Ω. Connectivity technology: Wired & Wireless, Bluetooth profiles: A2DP, AVRCP, HFP, Bluetooth range: 393.7" (10 m). Product type: Stereo portable speaker, Product color: Black, Silver, Product design: Tube. Recommended usage: Universal, Mobile operating systems supported: Android. Battery type: Built-in, Power source type: Battery, USB, Battery voltage: 3.7 V