Brand Name: JBL Model Number: C230 TWS Bluetooth version: 5.0 Transducer: 2 x 5.8 mm Frequency response: 5Hz – 22 kHz (-6dB) Signal-to-noise ratio: >80dB Earphone Battery type: 60 mAh Lithium-ion polymer Charge Box Battery type: 350 mAh Lithium-ion polymer Charge Box Battery charge time: 2hour @ 5V, 0.5A Music playing time: up to 3 hours (varies by Volume level and audio content) Playing Time For Charge Box:12 hours Weight: 5.8g x 2 This product hasn't received any reviews yet. Be the first to review this product!