Avantree Cyclone Outdoor Sports Wireless Bluetooth Speaker with Bike Mount for Bicycle Premium Sound, NFC, SD TF Card Support, IPX 4 Water Resistent. Cyclone is an outdoor Bluetooth speaker, great motivational companion for outdoor sports, especially for cycling use. Specification * Bluetooth Version: 3.0, Class 2 * Support Bluetooth HSP, HFP, A2DP and AVRCP Profiles * Support mp3, wav format in TF mode * Output power: 5W x 2 * Talk time: up to 6 hours * Music time: up to 6 hours * Standby Time: 40 hours * Charge time: About 3.5 hours * Operational range: up to 10 meters * Frequency Responds range: 100Hz ~ 20 kHz * Size: 180mm x 70mm x 70mm * Net Weight: 433g What is in the box? * Outdoor Bluetooth Speaker * Silicone belt with 2 screws * Includes cycle mount for cyclone * Micro USB charging cable * 3.5mm audio cable * Snap hook * User manual