JBL Clip 4 Eco. RMS rated power: 5 W, Frequency range: 100 - 20000 Hz, Peak Music Power Output (PMPO): 5 W. Connectivity technology: Wireless, Bluetooth profiles: A2DP, AVRCP, Bluetooth transmitter modulation: 8DPSK, DQPSK, GFSK. Product type: Stereo portable speaker, Product colour: Blue, White, Housing material: Plastic. Recommended usage: Universal. Battery type: Built-in battery, Battery technology: Lithium-Ion (Li-Ion), Battery life (max): 10 h