Portable Wireless Bluetooth V4.2 Stereo Speaker with Rope, Built-in MIC, Support Hands-Free Calls & TF Card & AUX in & FM, 10m Bluetooth Distance (Black)About the product: 1. Portable design, easy to operate and convenient to carry. It is a good friend for traveling and outdoor sports. 2. Bluetooth Stereo Speaker for iPhone and other Smartphones, so that you can enjoy a high definition stereo sound whether you're lounging around the house, or partying, walking out, camping, hiking, biking. 3. Built-in Microphone: Supports hands-free calls. 4. Support TF card & USB music playback, plug and play. Support AUX Audio & FM Function. 5. Up to 10m transmission distance.Specification:General - Material: Plastics, Silicone, Nylon - Bluetooth Version: V4.2 - Protocol: Handsfree, A2DP, AVRCP - Transmission Distance: Up to 10m - Frequency Response: 120-20kHz - SNR: >=90dB - Additional Functions: FM Radio, Hands-free Call - Power: 5W x 2 - Interfaces - 1 x Micro USB port - 1 x 3.5mm Earphone Jack - 1 x TF card slot - 1 x USB 2.0 portBattery - Battery Capacity: 1200mAh - Charging Time: 3-4 hoursDimensions & Weight - Item Size: 6.9*6.9*16cm - Item Weight: 416g