KOLEER H37 Bluetooth Speaker 7W Output 1200mAh Battery FM USB SD Type-C Mic Dual Speakers 8H Playtime 10m Range

The KOLEER H37 portable wireless speaker delivers clear audio with 7W output power and strong bass performance. Equipped with Bluetooth version 5.4, it ensures stable and fast connectivity within a range of up to 10 meters. The built-in 1200mAh battery provides a playback time of 2 to 8 hours on a single charge, with a full recharge time of approximately 2.2 hours. The speaker supports multiple playback options including FM radio, micro SD card, USB pen drive, and Type-C input, offering flexible usage. The 52mm full frequency dual speaker design provides consistent sound across a wide range (80Hz–16kHz). Its compact size (12680.381.4mm) and lightweight build make it easy to carry during travel, outdoor activities, or home use. The integrated microphone allows hands-free calling for added convenience. Compatible with smartphones, tablets, laptops, and desktops, this speaker offers simple functionality and dependable performance.