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 Green. Housing material Plastic. Recommended usage Universal. Battery type Built-in battery. Battery technology Lithium-Ion (Li-Ion). Battery life (max) 10 h